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by RK
Sat Apr 07, 2018 4:47 am
Forum: RouterBOARD hardware
Topic: Can't read Voltage via SNMP on CRS112-8P-4S
Replies: 13
Views: 2137

Re: Can't read Voltage via SNMP on CRS112-8P-4S

Thanks for confirming that I am doing everything correctly and that this is a software bug.
by RK
Thu Apr 05, 2018 8:14 pm
Forum: RouterBOARD hardware
Topic: Can't read Voltage via SNMP on CRS112-8P-4S
Replies: 13
Views: 2137

Re: Can't read Voltage via SNMP on CRS112-8P-4S

Mikrotik, are there plans to fix this software bug?
by RK
Sat Mar 31, 2018 4:27 am
Forum: RouterBOARD hardware
Topic: Can't read Voltage via SNMP on CRS112-8P-4S
Replies: 13
Views: 2137

Can't read Voltage via SNMP on CRS112-8P-4S

Self explanatory: []> /system health print oid active-fan: .1.3.6.1.4.1.14988.1.1.3.9.0 voltage: .1.3.6.1.4.1.14988.1.1.3.8.0 temperature: .1.3.6.1.4.1.14988.1.1.3.10.0 processor-temperature: .1.3.6.1.4.1.14988.1.1.3.11.0 current: .1.3.6.1.4.1.14988.1.1.3.13.0 fan-speed: .1.3.6.1.4.1.14988.1.1.3.17....
by RK
Fri Nov 10, 2017 11:48 pm
Forum: RouterBOARD hardware
Topic: mUPS max output current...way too low
Replies: 5
Views: 1066

Re: mUPS max output current...way too low

Agreed. The output current of the mUPS is far too low.
by RK
Tue Nov 10, 2015 10:14 am
Forum: General
Topic: Bandwidth not exceeding 75Mbit/s through Queue Tree & PCQ
Replies: 4
Views: 1357

Re: Bandwidth not exceeding 75Mbit/s through Queue Tree & PCQ

It looks like your queue tree has some incorrect/missing configurations.

Where is your pcq-limit setting?
Did you try using double or triple the default pcq-limit?
by RK
Mon Feb 23, 2015 8:15 pm
Forum: Wireless Networking
Topic: WiFi issue with Samsung S4 on RB2011UAS-2HnD-IN
Replies: 9
Views: 6775

Re: WiFi issue with Samsung S4 on RB2011UAS-2HnD-IN

Has this problem ever been resolved in RouterOS or Samsung devices still can't connect to the RB2011UAS-2HnD-IN?
by RK
Wed Feb 11, 2015 9:06 pm
Forum: RouterBOARD hardware
Topic: RB260GS + S-RJ01 (work on 100 Mbit/s) ????
Replies: 6
Views: 1517

Re: RB260GS + S-RJ01 (work on 100 Mbit/s) ????

Need one more 100 Mbit/s ethernet port. I try plug in this S-RJ01 cooper in to RB2011UAS and change speed on 100 Mbit/s , but it still does not work on 100 mbit. Why i don't understand.... Why mikrotik produce SFP cooper 10/100/1000 Mbit/s if he can't work on 10 and 100 mbit? Has this even been res...
by RK
Wed Nov 28, 2012 5:05 pm
Forum: General
Topic: Simple Queue Problem. No TX showing
Replies: 12
Views: 8897

Re: Simple Queue Problem. No TX showing

I for one expect this feature to work exactly as it is working on my other Linux boxes - affecting only bridged traffic. That has been so since that 5.6-5.8 version. And yes, i was one of the clients that asked for that fix. Are you sure about this? I just tested 5.14 and it works the way that I wa...
by RK
Mon Nov 26, 2012 4:49 pm
Forum: General
Topic: Simple Queue Problem. No TX showing
Replies: 12
Views: 8897

Re: Simple Queue Problem. No TX showing

Problem still exists in 5.22. Bug report 2012092066000612 is still open. You can close it. It is not a bug. use-ip-firewall was fixed to work correctly with firewall features around 5.6-5.8 version. Your problem is that in one direction use-ip-firewall is registering packets incoming into actual in...
by RK
Sun Nov 25, 2012 7:47 am
Forum: General
Topic: Simple Queue Problem. No TX showing
Replies: 12
Views: 8897

Re: Simple Queue Problem. No TX showing

I don't feel like i'm getting anywhere working on this on my own, so if anyone can help me out that would be great You are not doing anything wrong as far as I can tell. I just noticed the same problem. I am going to open a ticket with Mikrotik. Problem still exists in 5.22. Bug report 201209206600...
by RK
Thu Sep 20, 2012 7:09 pm
Forum: General
Topic: Simple Queue Problem. No TX showing
Replies: 12
Views: 8897

Re: Simple Queue Problem. No TX showing

I don't feel like i'm getting anywhere working on this on my own, so if anyone can help me out that would be great
You are not doing anything wrong as far as I can tell.
I just noticed the same problem. I am going to open a ticket with Mikrotik.
by RK
Fri Aug 24, 2012 3:39 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

Bravo for 5.20, it seems to work pretty good.
Same here. No unexpected behavior to report so far.
by RK
Sun Aug 12, 2012 3:30 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

Not sure if 5.19 was supposed to fix the power problem, but it hasn't.
by RK
Tue Jul 24, 2012 6:50 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

RK - release is coming along nicely.
How much longer will we suffer?
by RK
Fri Jul 06, 2012 7:03 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

it does not matter much how long cables are from RB750UP to device you are powering since there you can have up to 500mA. Issue is, that cable that is powering RB750UP itself, as there you will have sum of all powered device and losses and fluctuations will be bigger there. Yes, I understand all th...
by RK
Fri Jun 29, 2012 10:14 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

New firmware will be able to mask some of the spikes
When will it be made available?

In our setup, we see random reboots wit ha 24V feed and cables which are less than 5 feet long.
by RK
Fri May 25, 2012 8:07 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

Specifications are correct, any issues you might be seeing, are depending on specific conditions and ripple noise from the PSU. We will make software upgrade that does some output adjustments to compensate for this noise.
How is this coming along?
by RK
Sat May 05, 2012 6:09 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

positive end of capacitor soldered to positive end of onboard capacitor C14
negative end of capacitor soldered to negative ends of onboard capacitors C34 and C59
Thanks for this info.
How did you figure out the optimal connection points for the capacitor?
by RK
Sat May 05, 2012 6:08 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

This is a little off topic, but does the 750UP support VLAN tagging and trunking? I'm trying to set this up, but keep getting: "failure: not supported for this switch" Yes, it does. All routerboards released in the last few years can do this. Read the manual or ask in the software forum. Let's try ...
by RK
Sat Apr 28, 2012 3:27 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

we are working on new controller firmware that should remedy these problems.
That's nice to hear, as, in their current state, all our RB750UP devices can't fulfill they main purpose and we had to go back to using DC splitters and individual POE injectors.
by RK
Fri Apr 06, 2012 10:29 pm
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

janisk, any updates for us with the reboot issue?
by RK
Wed Mar 28, 2012 7:30 am
Forum: General
Topic: DNS Server Fails to Respond on 5.14
Replies: 1
Views: 711

DNS Server Fails to Respond on 5.14

Did anybody else experience an incident where RouterOS, running on RB751U-2HnD, fails to respond to DNS queries and needs to be rebooted as in: # dig http://www.google.com @1.2.3.4 ; <<>> DiG 9.3.4-P1 <<>> http://www.google.com @1.2.3.4 ; (1 server found) ;; global options: printcmd ;; Got answer: ;...
by RK
Tue Mar 27, 2012 7:25 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

weird thing is that power goes out twice in the row for the board. as you can see from the logs - it goes down, then up and then down again. I can't assist with the remainder of your test request, hopefully somebody else will, as I have these deployed in the field. But I can provide this useful bit...
by RK
Mon Mar 26, 2012 10:07 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

We are having issues with devices connecting to a 750UP as well. We have a site that has two Nanobridges attached to it. The logs show that the interfaces go down. We end up cycling the POE power on-off-on (or forced on in the newer firmware). We have tried to 750UP devices thinking we may have jus...
by RK
Sun Mar 25, 2012 7:46 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue

@normis: Wiki was first place where I've looked at ;) Could You give me a link to ROS 5.15rc1 (e-mail or PM).

Edit: OK. Got 5.15rc1. I'll try to test it in the same location where problem showed up.
Any updates?
by RK
Thu Mar 22, 2012 7:50 am
Forum: RouterBOARD hardware
Topic: RB750UP - Issue
Replies: 260
Views: 54888

Re: RB750UP - Issue to POE UBNT units

Has anyone had issues with powering UBNT rockets via the 750UP.? is there a write up somewhere on how to do the cabling? We upgraded the firmware on the 750UP to 4.17 Level 4 and we can interact fine with the 750UP but the Rocket resets continuously. Sounds like a cabling issue but can't find a cab...
by RK
Fri Feb 03, 2012 5:28 pm
Forum: General
Topic: Random Reboots with 5.12 on RB433
Replies: 2
Views: 586

Random Reboots with 5.12 on RB433

Is anybody else seeing multiple reboots per day (usually "due to power failure") on the the RB433 when running 5.12?
These are the same routerboards which were online for months at a time on 4.x
by RK
Mon Jan 30, 2012 2:22 am
Forum: RouterBOARD hardware
Topic: New wireless card RS5HPn
Replies: 9
Views: 2212

Re: New wireless card RS5HPn

Only 1 channel?! Why?
Do you have something similar with 2x2 planned?
by RK
Wed Jul 13, 2011 11:21 am
Forum: RouterBOARD hardware
Topic: RB750G vs RB750GL, why is the cpu clocked down?
Replies: 13
Views: 10983

Re: RB750G vs RB750GL, why is the cpu clocked down?

I believe the RB750GL has much larger MTU capability that the RB750G. Even though the clock speed might be less, I'll bet the transfer speed efficiency will make up for it. Just a guess though. -tp This assumes that the network is using an MTU higher than 1500, which is usually not the case anyway....
by RK
Wed Jul 13, 2011 11:14 am
Forum: RouterBOARD hardware
Topic: RouterBOARD Groove
Replies: 96
Views: 23705

Re: RouterBOARD Groove

Most of my Mikrotik devices drains no more than 6 watts. This is 0.125A at 24V. This sums up to 4 Amps in total for 16 devices. If you go for 28V instead 24V the current lowers under 4 amps. Are you sure about the last statement? If a routerboard requires 6W, will it consume 0.5A at 12V and 0.25A a...
by RK
Sat Jul 02, 2011 12:45 pm
Forum: RouterBOARD hardware
Topic: RB450 Capacitors problem?
Replies: 120
Views: 41895

Re: RB450 Capacitors problem?

dont solder in just any old cap... buy a good quality one. I can recommend either some Rubycon Nichicon Chemi-Con. you can buy from digikey, or badcaps.net or most electronics retailers. The board should not be putting so much demand on the capacitors that only the very best top of the line caps su...
by RK
Thu Jun 30, 2011 11:03 am
Forum: General
Topic: Also RB600 throughput issues, max 276 mbit/s
Replies: 4
Views: 970

Re: Also RB600 throughput issues, max 276 mbit/s

Was this ever resolved?
by RK
Thu Jun 30, 2011 1:56 am
Forum: General
Topic: [Solved] RB750G ROS 5.2 serious performance issue.
Replies: 15
Views: 2928

Re: [Solved] RB750G ROS 5.2 serious performance issue.

Hi guys,

I can confirm that there is huge performance improvement in ROS 5.3 even compared to 4.17. So do not downgrade, it's better to wait few days and upgrade to 5.3.

Life is nice again :D

Is it also normal in 5.5 or only 5.3?
by RK
Fri Feb 11, 2011 7:50 am
Forum: RouterBOARD hardware
Topic: RB1100 low bridging/shapping performance
Replies: 57
Views: 10277

Re: RB1100 low bridging/shapping performance

So tried to put it in a real life situation and I put an online gaming server behind it. 60-80% CPU usage at about 30Mbps traffic and about 10k active connections. So I believe that once you hit the 50 Mbps cap with normal traffic you will get packet loos and delays. For comparison, I do over 50 Mb...
by RK
Sun Feb 06, 2011 11:26 am
Forum: RouterBOARD hardware
Topic: POE incident customer burns laptop SMOKE!
Replies: 11
Views: 3455

Re: POE incident customer burns laptop SMOKE!

Since the first installation we did, we have explained to the customer to NEVER connect the POE side of the POE injector to ANYTHING except the antenna. We make sure to repeat it 2 or 3 times and tell them clearly that if they make this mistake, their equipment WILL go up in smoke. So far, less than...
by RK
Sun Feb 06, 2011 11:18 am
Forum: RouterBOARD hardware
Topic: RB1100 low bridging/shapping performance
Replies: 57
Views: 10277

Re: RB1100 low bridging/shapping performance

Hello mihaialdea, I had similar problems with bridging and queues on my 1100s; I bridged Port 11-12 , enabled piping through fw, and added mangle rules and a complex queue tree for interface 12: The result was a more or less completely unresponsible RB - the interfaces showed only a few Mbps of dat...
by RK
Sat Feb 05, 2011 11:24 am
Forum: RouterBOARD hardware
Topic: RouterBOARD SXT 5HnD
Replies: 191
Views: 59793

Re: RouterBOARD SXT 5HnD

What most people do not realise is that telephony requires a very low ping response time so as to prevent echo on a call. This can be achieved by having giga ethernet interfaces, as every step in the link helps, and helps a lot. When passing 20 Mbps of traffic, a GigE interface does not have any lo...
by RK
Sat Feb 05, 2011 11:18 am
Forum: RouterBOARD hardware
Topic: RB1100 low bridging/shapping performance
Replies: 57
Views: 10277

Re: RB1100 low bridging/shapping performance

I already tried that even though it was useless to me. I've disabled all queues, I've disabled all firewall rules. Let me see if I understand this correctly. You are saying that you disabled all queues and all firewall rules but you still were not able to bridge 200 Mbps of traffic? Did you make su...
by RK
Fri Jan 28, 2011 8:21 am
Forum: RouterBOARD hardware
Topic: No beeper on some Routerboards
Replies: 5
Views: 990

Re: No beeper on some Routerboards


A word of warning, don't cheap out like I did. For $30 more, you'll get these features if you buy RB450G:
Don't forget another $15 or so for case and power supply + labor for putting it together.
When buying a few hundred units the difference really adds up.
by RK
Fri Jan 28, 2011 8:18 am
Forum: RouterBOARD hardware
Topic: RouterBOARD SXT 5HnD
Replies: 191
Views: 59793

Re: RouterBOARD SXT 5HnD

Not to go off-topic, but how do yo calculate focal point as it's slightly different for each frequency(band)?

Ekkas
the focal point doesnt change by frequency its depend of the size and form of the reflector..
I have been told that the reflectors don't work for dual polarity type devices.
by RK
Thu Jan 20, 2011 11:15 am
Forum: Wireless Networking
Topic: AP deployment, many customers on a small range
Replies: 3
Views: 583

Re: AP deployment, many customers on a small range

You want as many sectors as you can fit, running on channels spaced out as much as you can, with polling.
by RK
Thu Jan 20, 2011 11:09 am
Forum: Wireless Networking
Topic: I want Wireless AP sync. TDD or FDD with TDMA NV2
Replies: 90
Views: 12806

Re: I want Wireless AP sync.

There seem to be many things called "wireless sync". I simply wanted some clarification to understand which things do you find the most important. Is it really only in the name of it ? Most WISPs have limited understanding of the physics involved in wireless communication. For most customers, any k...
by RK
Thu Jan 20, 2011 11:02 am
Forum: Wireless Networking
Topic: I want Wireless AP sync. TDD or FDD with TDMA NV2
Replies: 90
Views: 12806

Re: I want Wireless AP sync.

What about your boards that support multiple cards(RB600, RB800, RB433, etc.), can they be set up so that each card sends and receives at the same time. This is an excellent first step that requires no new hardware. You could call it "NV2 Group" and allow syncing of multiple radio cards which are o...
by RK
Thu Jan 20, 2011 10:56 am
Forum: Wireless Networking
Topic: I want Wireless AP sync. TDD or FDD with TDMA NV2
Replies: 90
Views: 12806

Re: I want Wireless AP sync.

You link the sectors to a common time source, then you have them broadcast for 10ms then listen for 2ms *at the same time*. So when North is broadcasting, so is South. Then they both fall silent at the same time and listen. Notice that when they are listening for their clients, the other AP is sile...
by RK
Thu Jan 20, 2011 10:41 am
Forum: Wireless Networking
Topic: slice and dice...
Replies: 6
Views: 986

Re: slice and dice...

SFQ is easier to setup to equally divide bandwidth between customers
by RK
Thu Jan 20, 2011 10:31 am
Forum: RouterBOARD hardware
Topic: RouterBOARD SXT 5HnD
Replies: 191
Views: 59793

Re: RouterBOARD SXT 5HnD

What I do not like ------------------- 1) it has not a good mounting bracket, I would prefer something with a tilt INCLUDED in the box 2) the antenna has a too low gain, 16dB is not enough in many situations I couldn't agree more. I hope at least somebody will release an affordable accessory to fix...
by RK
Mon Jan 03, 2011 9:36 pm
Forum: General
Topic: Prioritizing Traffic with Unknown Link Capacity
Replies: 20
Views: 3296

Re: Prioritizing Traffic with Unknown Link Capacity

Suppose I have a wireless link on which the speed varies between 7 Mbps and 10 Mbps depending on the weather. At the end of the link I have a routerboard with two computers (on different vlans, or ethernet ports or different IPs, whatever). Can I set it up so that Computer A gets 100% of the capaci...
by RK
Tue Sep 14, 2010 8:28 am
Forum: RouterBOARD hardware
Topic: Per interface traffic shaping
Replies: 13
Views: 6855

Re: Per interface traffic shaping

This isn't working on wlan1 interface for example, but works on bridge1.
If you are using bridges, be sure to enable IP firewall in the bridge settings.
by RK
Tue Sep 14, 2010 8:27 am
Forum: RouterBOARD hardware
Topic: two antennas with a spillter?
Replies: 10
Views: 1834

Re: two antennas with a spillter?

Did you forget that you lose 3 dB when you split the signal?
-3 dB + 3dB - time - material - lossy connectors = you lose
by RK
Wed Sep 01, 2010 11:48 am
Forum: RouterBOARD hardware
Topic: port to port latency Mikrotik routers
Replies: 7
Views: 1605

Re: port to port latency Mikrotik routers

I haven't seen any real life configurations where the port to port latency is more than 1ms.
by RK
Mon Aug 16, 2010 6:37 am
Forum: Wireless Networking
Topic: Dual polarization antennas or two antennas in one unit
Replies: 75
Views: 43825

Re: Dual polarization antennas or two antennas in one unit

To anyone using dual polarity SECTOR antennas with an access point (not dishes for ptp)! How are you connecting it? Do you use one radio per polarization like 1 radio for horizontal and one radio for vertical or are you using one radio and splitting the signal to the dual n connectors on the sector...
by RK
Wed Aug 04, 2010 11:03 am
Forum: RouterBOARD hardware
Topic: Faulty ethernet port on RB411?
Replies: 4
Views: 1503

Re: Faulty ethernet port on RB411?

You probably had bad weather again. If you have a bad power supply, or improper grounding, the Ethernet chip can get damaged, either completely or to 10 Mbps, from ESD.
by RK
Wed Aug 04, 2010 11:01 am
Forum: RouterBOARD hardware
Topic: Time Travel with the RB133
Replies: 5
Views: 880

Re: Time Travel with the RB133

Vand der Graaf Generator
I had to look it up.
Now, please explain how it is relevant to the joke.
by RK
Sat Jul 31, 2010 10:09 am
Forum: Wireless Networking
Topic: R52n - mode a Turbo?
Replies: 7
Views: 1663

Re: R52n - mode a Turbo?

I don't think any of the 802.11n cards support turbo mode.
by RK
Thu Jul 29, 2010 10:19 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287497

Re: 802.11n

Maybe some hint what signal to look for? I mean in particular numbers.
-55 to -65 is good from my experience
by RK
Thu Jul 29, 2010 10:18 am
Forum: Wireless Networking
Topic: Why does a 433AH suck on solar?
Replies: 10
Views: 1339

Re: Why does a 433AH suck on solar?

It's good S.O.P to regulate the voltage going into your gear, just because the older boards could handle voltage's outside their normal range doesnt mean it is good for them
+1

DC-DC converters are cheap. Look on eBay.
by RK
Thu Jul 29, 2010 10:14 am
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77826

Re: New wireless protocol: Nv2 in v5.0beta5

why do you use different brands? because other-brand cpe's are cheaper? mikrotik is working on that There is no question that Mikrotik's software is far superior to the "other guys." The problem is that you have fallen far behind on the hardware and I think you are seeing that in your sales numbers...
by RK
Thu Jul 29, 2010 10:06 am
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77826

Re: New wireless protocol: Nv2 in v5.0beta5

uldis, will we be able to assign time slots to individual clients using this TDMA system?
As in, will I be able to assign more important clients a larger % of the air time so they get good performance even when the link is under high load?
by RK
Thu Jul 29, 2010 10:00 am
Forum: RouterBOARD hardware
Topic: NEW RB711
Replies: 110
Views: 28797

Re: NEW RB711

If they do, a product similar to this http://www.rfelements.com/StationBox-5G ... tenna.html would be decent starting point.
First affordable dual polarity enclosure I have seen, but 12 dBi is far too low. Thanks for sharing.
by RK
Thu Jul 29, 2010 9:52 am
Forum: RouterBOARD hardware
Topic: Are you planning to deploy VoIP enduser hardware?
Replies: 13
Views: 2141

Re: Are you planning to deploy VoIP enduser hardware?

ZyXEL make a small ethernet router that has 1x WAN, 1x LAN and 2x FXS ports. It will do PPPoE on the native vlan and can put voip on a seperate vlan. I think Linksys and Grandstream have similar products as well. There are plenty of affordable VoIP adapters in the market already. Mikrotik should co...
by RK
Thu Jul 29, 2010 9:51 am
Forum: RouterBOARD hardware
Topic: Are you planning to deploy VoIP enduser hardware?
Replies: 13
Views: 2141

Re: Are you planning to deploy VoIP enduser hardware?

And ofc - quality of voip by grandstream is not so good...
Is this just a guess or have you had problems with a specific grandstream products?
Our grandstream ATAs and phones sound at least as good as POTS.
by RK
Thu Jul 29, 2010 9:49 am
Forum: RouterBOARD hardware
Topic: Are you planning to deploy VoIP enduser hardware?
Replies: 13
Views: 2141

Re: Are you planning to deploy VoIP enduser hardware?

Hi, Guys are you planning to set up any voip hardware? Ideal would be 711 with integrated voip. So we put 2x ethernet cable on roof (one for ethernet + phone lines one for power). Are you seriously suggesting running two cat5e cables from the customer to the antenna outside? That's crazy. It is so ...
by RK
Wed Jul 28, 2010 10:24 am
Forum: RouterBOARD hardware
Topic: NEW RB711
Replies: 110
Views: 28797

Re: NEW RB711

I'm disappointed in the lack of dual chains. A low cost CPE may not need the speed of dual chains, but it would allow for an overall more efficient RF environment. There would be better signal and more clients could share the speed dual chains provides. What antenna would you use to create a low co...
by RK
Tue Jul 27, 2010 10:24 am
Forum: RouterBOARD hardware
Topic: SolarTik
Replies: 71
Views: 17084

Re: SolarTik

Nice one, probably.

what is a DTMF Decoder, and how would you like the unit to use it ?

(i could Google, but maybe you have a specific requirement)
DTMF = the dial tones on the phone. "Press 1 to reboot AP1, Press 2 to Reboot AP2" and so on.
by RK
Tue Jul 27, 2010 10:22 am
Forum: RouterBOARD hardware
Topic: 24v Battery Charging, > 27v to RouterBoards
Replies: 29
Views: 3937

Re: 24v Battery Charging, > 27v to RouterBoards

Has anyone heard of a charger that zap-pulses the battery to reduce sulphate build-up, or somehow detects the level of the electrolyte ?
Yes, it is called a desulphator. I hear they work pretty good.
by RK
Mon Jul 26, 2010 10:33 am
Forum: RouterBOARD hardware
Topic: NEW RB711
Replies: 110
Views: 28797

Re: NEW RB711

and dual chain version of the board.
Do you know of any affordable 5 GHz dual polarity antennas we would use this with?
by RK
Sun Jul 25, 2010 10:35 pm
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 77826

Re: New wireless protocol: Nv2 in v5.0beta5

uldis, will we be able to assign time slots to individual clients using this TDMA system?
As in, will I be able to assign more important clients a large % of the air time so they get good performance even when the link is under high load?
by RK
Sun Jul 25, 2010 10:28 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287497

Re: 802.11n

Hi , I am new one im mikrotik. Im using RB433 with N wifi card and 5ghz double antena. I use it only for 1 km and i think i need to attenuation signal. Now Its working like before with single 5ghz antena with G wifi card. I dont find where i can attenuation signal, can somebody help me ? Simplest w...
by RK
Sun Jul 25, 2010 10:15 pm
Forum: RouterBOARD hardware
Topic: NEW RB711
Replies: 110
Views: 28797

Re: NEW RB711

And your customers what they wanted to be sure they buy the cheapest products Ubiquity.
I think that, with the release of this board, the Mikrotik solution costs about the same, or less, as a Ubiquiti bullet + panel antenna.
by RK
Wed Jul 21, 2010 10:20 am
Forum: RouterBOARD hardware
Topic: AP Sentinel Competition ! Prize is an AP Sentinel !
Replies: 26
Views: 3438

Re: AP Sentinel Competition ! Prize is an AP Sentinel !

Well, i worked out the CCITT CRC-16 polynomial thing with a lot of Google help, but a recent post makes it all redundant now.

http://www.packetflux.com/index.php?mai ... ucts_id=21

It's already been done, and <$100.
Nice link. I wonder why they are backordered.
by RK
Sun Jul 11, 2010 10:32 pm
Forum: RouterBOARD hardware
Topic: AP Sentinel Competition ! Prize is an AP Sentinel !
Replies: 26
Views: 3438

Re: AP Sentinel Competition ! Prize is an AP Sentinel !

Any more suggestions (and the chance to Win a Free one) before i start doing the PCB design ? If you release only the schematic, very few of us will be able to use it. At minimum, you should sell the PCB. If you sell a kit, that will be even better. However, ideally, you should sell the finished pr...
by RK
Sun Jul 11, 2010 10:26 pm
Forum: RouterBOARD hardware
Topic: SolarTik
Replies: 71
Views: 17084

Re: SolarTik

It seems that SolarTik has basically served to point out that there is no real need for a Solar Charger That's right. Also, there are many different types of solar panels and batteries that require different chargers. There is enough solar charge controllers on the market today, no need for you to ...
by RK
Sun Jul 11, 2010 10:21 pm
Forum: RouterBOARD hardware
Topic: SolarTik
Replies: 71
Views: 17084

Re: SolarTik

We use 24V panels charging 12V batteries directly across the terminals
That seems like a really bad idea to me.
Everything I ever read said that charging batteries at so much above their nominal voltage damages them seriously.
by RK
Sat Jul 03, 2010 10:27 am
Forum: General
Topic: Auto - MDIX
Replies: 2
Views: 1373

Re: Auto - MDIX

I'm seeing some problems in RouterOS 4.10 on a RB493AH when it comes to communicating with a Cisco switch. Worked fine in 3.30.
There is certainly something wrong.
by RK
Sat May 22, 2010 9:42 am
Forum: RouterBOARD hardware
Topic: R5H Cards overheating???
Replies: 5
Views: 826

Re: R5H Cards overheating???

From my experience, all the R5H cards that get very hot are already broken.
They have a very high failure rate from my experience.
by RK
Wed Mar 31, 2010 9:12 am
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2712

Re: Full Duplex R52nH

When using unlicensed wireless devices you can pretty much throw any semblance of TRUE duplex out the window, so for you TECHNICALLY astute, have that. I thought some Motorola gear was full duplex? Maybe I'm wrong, can't say I used it much. You wrote "802.11n can receive on one antenna while transm...
by RK
Wed Mar 31, 2010 9:02 am
Forum: Wireless Networking
Topic: VoIP over Nstreme PTMP not working good
Replies: 19
Views: 3914

Re: VoIP over Nstreme PTMP not working good

But maybe this is just an old idea not valid any more with new nstreme?
New nstreme fixed the unstable latency during low traffic.

Type less, test more :)
by RK
Tue Mar 30, 2010 9:47 am
Forum: Wireless Networking
Topic: VoIP over Nstreme PTMP not working good
Replies: 19
Views: 3914

Re: VoIP over Nstreme PTMP not working good

Can you explain to me why you do think that nstreme is better? Is this just a ´hinge´ or did you really try and experienced differences? I am asking because to me (and not only me) the pure working principle (collecting frames before sending so overhead can be skipped and thus higher throughputs wi...
by RK
Tue Mar 30, 2010 9:34 am
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2712

Re: Full Duplex R52nH

I dont know if this has been answered as yet. How would you use a R52nH with a RB433AH and a dual feed 5.8ghz dish to setup a full duplex link? Would you use 1 card per feed or both feeds onto one card? Would the card auto do full duplex or have to use OSPF to get best speed and duplexing? Please a...
by RK
Tue Mar 30, 2010 9:33 am
Forum: Wireless Networking
Topic: Full Duplex R52nH
Replies: 13
Views: 2712

Re: Full Duplex R52nH

When I can do a routerboard to routerboard TCP speedtest over N and accomplish 90Mbps UP and 90Mbps Down simultaneously, then I would have to make a statement that it is purdy dang close to full duplex for the likes of me. Even if it works "almost as fast as full duplex," it is still not full duple...
by RK
Tue Mar 30, 2010 9:29 am
Forum: Wireless Networking
Topic: remotely monitor solar array / what amp hour is needed
Replies: 18
Views: 2563

Re: remotely monitor solar array / what amp hour is needed

I am new to routeros but enjoying it. I have a solar facility I am in the process of deploying. It is powered by two 130watt solar panels in series for 24volts. These feed to 12v 210ah batteries for a total of 420ah. the site so far has a 411ah board as an ap 900mhz xr9 and an 411 as the end of a b...
by RK
Mon Mar 29, 2010 10:49 am
Forum: Wireless Networking
Topic: VoIP over Nstreme PTMP not working good
Replies: 19
Views: 3914

Re: VoIP over Nstreme PTMP not working good

Ok, you have to clearify this: You have 100 calls (different client's) running over one backhaul "link"? Or you have 100 different client (and making calls) running off one AP? The latter seems to me asking for big problems, Voip or no Voip, nstreme or no nstreme. But running 100 or more (1000!) ov...
by RK
Wed Mar 24, 2010 4:02 am
Forum: RouterBOARD hardware
Topic: mikrotik to lan pc pingtime 9 ms
Replies: 14
Views: 1886

Re: mikrotik to lan pc pingtime 9 ms

I used mikrotik on pc-router, connect by hub to lan wired 7 pc, before i'm using mikrotik v 3.28 ping time is 1 ms.. its normal?
replace the hub with a switch
by RK
Wed Mar 24, 2010 3:57 am
Forum: RouterBOARD hardware
Topic: Winbox twice on PC
Replies: 6
Views: 1126

Re: Winbox twice on PC

I don't understand your question
He wants to have two winbox address lists.
So do I.
by RK
Wed Mar 24, 2010 3:52 am
Forum: Wireless Networking
Topic: How far can I create a poe 24v link over cat5e?
Replies: 10
Views: 3027

Re: How far can I create a poe 24v link over cat5e?

We have done 24V poe runs of over 400 feet. The key to success is using high quality cable (no CCA or CCS crap) and no splices. Using a 24V 2A POE injector also helps. If all else fails, use a 50V POE injector with the UBNT instant-poe adapter for dropping the voltage to 16V at the CPE.
by RK
Wed Mar 24, 2010 3:46 am
Forum: Wireless Networking
Topic: VoIP over Nstreme PTMP not working good
Replies: 19
Views: 3914

Re: VoIP over Nstreme PTMP not working good

This looks like two different threads were merged when they are totally unrelated.

The latest versions of nstreme work great with VoIP.
We have over 100 calls running at the same time over one such link.
by RK
Sun Mar 21, 2010 7:03 am
Forum: Wireless Networking
Topic: IP packing possible on bridge
Replies: 3
Views: 1050

Re: IP packing possible on bridge

the source and destination MAC addresses, within the layer ethernet packet, must be mikrotik.
by RK
Sat Mar 20, 2010 7:02 am
Forum: Wireless Networking
Topic: IP packing possible on bridge
Replies: 3
Views: 1050

Re: IP packing possible on bridge

It only works when packets are going between two mikrotik routers.
by RK
Mon Mar 08, 2010 9:22 am
Forum: RouterBOARD hardware
Topic: High CPU load or not?
Replies: 13
Views: 1718

Re: High CPU load or not?

How about, instead of bridging ports 2-5, you put them in switch mode?
Will save you a ton of CPU.
by RK
Sat Mar 06, 2010 7:19 am
Forum: RouterBOARD hardware
Topic: 411ar voltage monitor
Replies: 4
Views: 770

Re: 411ar voltage monitor

only RB433AH, RB333 has voltage monitor
and RB450G
by RK
Tue Feb 16, 2010 6:14 am
Forum: RouterBOARD hardware
Topic: Hot new Mikrotik Radio Card - R52Hn
Replies: 66
Views: 16780

Re: Hot new Mikrotik Radio Card - R52Hn

Did anyone else notice, doing the math these things require max 2.1 A. That's way higher than any of the other Mikrotik cards.
How do you figure?
P=IE so I=P/E 7watts/3.3volts = 2.21amps
I didn't notice the 7 watts line.
by RK
Tue Feb 16, 2010 6:12 am
Forum: Wireless Networking
Topic: 5 RB411's into ethernet switch possible?
Replies: 5
Views: 890

Re: 5 RB411's into ethernet switch possible?

It seems to me that if I bridge the lan port to the wlan port and then plug them all into the same switch that it should work.
I don't think that works properly.
You would be better offer doing very basic NAT/DHCP routing on each AP.
by RK
Tue Feb 16, 2010 6:09 am
Forum: Wireless Networking
Topic: 802.11n ready to go live?
Replies: 2
Views: 814

Re: 802.11n ready to go live?

I am looking at building a 2 chain N AP for single chain clients. Has anyone tried this yet? We have deployed quite a few like this using UBNT dual pol sectors with rockets for AP and single pol panels with bullets for CPE. We try to alternate between installing the panels in vertical and horizonta...
by RK
Sun Feb 14, 2010 9:06 pm
Forum: RouterBOARD hardware
Topic: Hot new Mikrotik Radio Card - R52Hn
Replies: 66
Views: 16780

Re: Hot new Mikrotik Radio Card - R52Hn

Did anyone else notice, doing the math these things require max 2.1 A. That's way higher than any of the other Mikrotik cards.
How do you figure?
by RK
Thu Jan 28, 2010 6:01 pm
Forum: Wireless Networking
Topic: 1x1 Mimo R-52N VS R-52
Replies: 7
Views: 2056

Re: 1x1 Mimo R-52N VS R-52

If you are using 5 GHz, the R5H is better than the R52
by RK
Tue Jan 26, 2010 11:51 pm
Forum: Wireless Networking
Topic: ubnt bullet on tower + two RB493AH: some hints ?
Replies: 1
Views: 504

Re: ubnt bullet on tower + two RB493AH: some hints ?

Seems like a good plan. UBNT devices are great for point-to-point backhaul but RouterOS is far superior for router stuff.
by RK
Tue Jan 26, 2010 10:35 am
Forum: RouterBOARD hardware
Topic: Set top box
Replies: 3
Views: 860

Re: Set top box

I really doubt the routerboards have the CPU power for this
by RK
Fri Jan 22, 2010 7:55 am
Forum: Wireless Networking
Topic: controlling PPS in 802.11b/g environment
Replies: 7
Views: 1145

Re: controlling PPS in 802.11b/g environment

So what do you plan to do?
This may work to drop packets on the CPE, but if you don't control the CPEs then this would be almost useless on the AP.
by RK
Thu Jan 21, 2010 7:51 am
Forum: Wireless Networking
Topic: controlling PPS in 802.11b/g environment
Replies: 7
Views: 1145

Re: controlling PPS in 802.11b/g environment

The answer (thanks to Ian at Titan Wireless) is at <http://wiki.mikrotik.com/wiki/Firewall/ ... c_examples>.

kind regards/ldv
That page has nothing at all about PPS.
Maybe you have the wrong link?
by RK
Wed Jan 20, 2010 11:44 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287497

Re: 802.11n

you can see it in his picture. signal is -47
Notice who I was quoting and replying to.
by RK
Wed Jan 20, 2010 3:35 am
Forum: Wireless Networking
Topic: RB450G Can Handle it?????????
Replies: 15
Views: 1523

Re: RB450G Can Handle it?????????

I guess the RB450G wont support that bandwidth, according to the test-april-2009 the board can just support upto 60 Mbps routing Look closer. It says 777 Mbps with 1500 byte packets. yes but generally in internet we user smaller packets 64 bytes No. 1500 bytes is what you see on the Internet at lea...
by RK
Wed Jan 20, 2010 3:31 am
Forum: RouterBOARD hardware
Topic: New RB816 !
Replies: 20
Views: 6448

Re: New RB816 !

is very useful if you want to make a lanparty on the tower...you dont need to cary a switch.
Classic eastern european sarcasm.
by RK
Tue Jan 19, 2010 12:44 pm
Forum: General
Topic: 2 ISP's
Replies: 15
Views: 2427

Re: 2 ISP's

If we have a block of public ip addresses (using public ips for users and don't use NAT) and the connection to other ISPs made by BGP , again this is possible ?
Then you need to use BGP (distances, priorities, prepends etc.) to control traffic flow.
by RK
Tue Jan 19, 2010 12:42 pm
Forum: General
Topic: RB750G changing over from 1Gbps to 100Mbps unexpectedly
Replies: 7
Views: 1231

Re: RB750G changing over from 1Gbps to 100Mbps unexpectedly

Cable quality might not be good enough or maybe it's too long.
Do you have RB750G on both sides?
by RK
Tue Jan 19, 2010 12:40 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 287497

Re: 802.11n

Hello, I have a problem with the "n" link. ROS 4.4.
Distance 800m, 2 separate antennas 26dbi in different polarization.
What is your signal strength?
by RK
Tue Jan 19, 2010 12:33 pm
Forum: RouterBOARD hardware
Topic: Hot new Mikrotik Radio Card - R52Hn
Replies: 66
Views: 16780

Re: Hot new Mikrotik Radio Card - R52Hn

Exciting.

I hope it doesn't go up in smoke when changing channels, like the R5H.
I also hope it won't suffer from 2.4 GHz interference when running at 5.8 GHz because of the dual band operation.
by RK
Tue Jan 19, 2010 5:29 am
Forum: RouterBOARD hardware
Topic: New RB816 !
Replies: 20
Views: 6448

Re: New RB816 !

I agree, this does look pretty useless.
by RK
Sun Jan 17, 2010 6:34 am
Forum: Wireless Networking
Topic: RB450G Can Handle it?????????
Replies: 15
Views: 1523

Re: RB450G Can Handle it?????????

I guess the RB450G wont support that bandwidth, according to the test-april-2009 the board can just support upto 60 Mbps routing
Look closer. It says 777 Mbps with 1500 byte packets.
by RK
Fri Jan 15, 2010 7:07 pm
Forum: Wireless Networking
Topic: RB450G Can Handle it?????????
Replies: 15
Views: 1523

Re: RB450G Can Handle it?????????

Can you detail it a litle bit RK.
Thanks
It's very basic.
You attach one port on the routerboard to one port on the switch (say 24 port switch).
You create 23 VLANs on the routerboard port and assign each VLAN to one port on the big switch.
by RK
Fri Jan 15, 2010 6:41 am
Forum: Wireless Networking
Topic: RB450G Can Handle it?????????
Replies: 15
Views: 1523

Re: RB450G Can Handle it?????????

Thank again for quick reply ,I had RB1000 in my vision but the problem is that RB1000 has only 4 lan ports and i need 5 or more..
Thanks
You can attach it to a basic managed switch and use vlans.
by RK
Thu Jan 14, 2010 12:21 pm
Forum: Wireless Networking
Topic: keeping 2 dns on the network
Replies: 5
Views: 634

Re: keeping 2 dns on the network

the whole problem is this. the are two different dns on the network 192.168.1.1,192.168.1.1 and 4.2.2.2,80.87.76.36. now what i want to do is this, i want a situation where if the internet link using the first dns goes off i dont have to change the dns in all the client radio but the still browse t...
by RK
Thu Jan 14, 2010 12:16 pm
Forum: Wireless Networking
Topic: RB450G Can Handle it?????????
Replies: 15
Views: 1523

Re: RB450G Can Handle it?????????

Thanks RK.
Then I will try RB450G but can you recomend me something with more juice..?
Thanks
http://www.routerboard.com/

The RB1000 can handle your task, and more, for sure.
by RK
Thu Jan 14, 2010 12:14 pm
Forum: RouterBOARD hardware
Topic: RB Product Lifecycle
Replies: 15
Views: 2575

Re: RB Product Lifecycle

What might seem like a trivial change (RB411A to RB411U adds USB)
and removes some RAM.
Might need the RB411AH instead.
by RK
Thu Jan 14, 2010 12:12 pm
Forum: RouterBOARD hardware
Topic: RB532A Rebooting under Load
Replies: 7
Views: 1719

Re: RB532A Rebooting under Load

i have exactly the same problem with almost the same config. MikroTik RB532A with daughterboard. ive upgraded the firmware, all software packages, performed a complete reset, replace the PoE with normal power supply, disabled devices not in use etc etc etc. No solution as yet, still struggling with...
by RK
Thu Jan 14, 2010 11:26 am
Forum: Wireless Networking
Topic: RB450G Can Handle it?????????
Replies: 15
Views: 1523

Re: RB450G Can Handle it?????????

I think you will be borderline OK with a RB450G.
by RK
Thu Jan 14, 2010 2:42 am
Forum: Wireless Networking
Topic: 500km link posible?
Replies: 15
Views: 2614

Re: 500km link posible?

http://www.columbus-networks.com/ is a lot closer (210km) to Bluefields (i think they have pick up there) then too Costa Rica but i think there will be a line of site problem since the cost is around see level and the mountain here is 1320m. They have access to local fiber. Post your email address ...
by RK
Wed Jan 13, 2010 9:45 am
Forum: Wireless Networking
Topic: RB450G Can Handle it?????????
Replies: 15
Views: 1523

Re: RB450G Can Handle it?????????

And what does this have anything to do with Wireless Networking?
by RK
Wed Jan 13, 2010 9:44 am
Forum: Wireless Networking
Topic: 50 km link with nstreme
Replies: 13
Views: 1958

Re: 50 km link with nstreme

so if its possable can you do a pc to pc test through your link
He already did. Scroll up.
by RK
Wed Jan 13, 2010 9:42 am
Forum: Wireless Networking
Topic: vpls vs eoip
Replies: 3
Views: 2077

Re: vpls vs eoip

MPLS is faster than EoIP
by RK
Wed Jan 13, 2010 9:41 am
Forum: Wireless Networking
Topic: What can i do when my competitor play unfair?
Replies: 8
Views: 1177

Re: What can i do when my competitor play unfair?

What are your CPE devices?
by RK
Mon Jan 11, 2010 3:26 pm
Forum: Wireless Networking
Topic: 50 km link with nstreme
Replies: 13
Views: 1958

Re: 50 km link with nstreme

yeah i know , because i m using turbo mode , there should be 40 MHZ space but this is not the problem I repeat again: You need more spacing between the frequencies of the two links. How do you know that is not the problem? Did you test it? Also, you may need more cpu at B, like RB433AH. You might b...
by RK
Mon Jan 11, 2010 3:19 pm
Forum: RouterBOARD hardware
Topic: TX/RX loses on R5H when it gets hot?
Replies: 5
Views: 813

Re: TX/RX loses on R5H when it gets hot?

Turns out it was some sort of a connecter problem. Disconnecting and reconnecting the LMR400 cable returned everything to normal.

Thanks janisk and normis.
by RK
Mon Jan 11, 2010 1:22 pm
Forum: RouterBOARD hardware
Topic: TX/RX loses on R5H when it gets hot?
Replies: 5
Views: 813

Re: TX/RX loses on R5H when it gets hot?

coudl you give some more details - like how hot, what data rate, what settings? I am not sure how hot it is. It's up on a tower in a sealed enclosure. Average outside temperature for yesterday is 28.0C and the card has been pushing 10 Mbps for about 20 hours when signal strength got crappy. It is s...
by RK
Mon Jan 11, 2010 1:20 pm
Forum: RouterBOARD hardware
Topic: TX/RX loses on R5H when it gets hot?
Replies: 5
Views: 813

Re: TX/RX loses on R5H when it gets hot?

we tested this card at +60C, it starts to lose speed when going over +50C. you might want to ventilate the box it's in, or keep it in shade.
Will the loss in speed be seen as lower RX/TX signal strength?
Will it return to normal when the card cools down?
by RK
Mon Jan 11, 2010 10:19 am
Forum: Wireless Networking
Topic: 50 km link with nstreme
Replies: 13
Views: 1958

Re: 50 km link with nstreme

You need more spacing between the frequencies of the two links.
by RK
Mon Jan 11, 2010 10:14 am
Forum: RouterBOARD hardware
Topic: TX/RX loses on R5H when it gets hot?
Replies: 5
Views: 813

TX/RX loses on R5H when it gets hot?

Has anyone observed both the TX and RX signal strength on the R5H decreasing by 10 dB to 15 dB after it has been doing heavy TX for many hours on a hot day?

Edit: Never mind. It was a cable problem.
by RK
Sat Jan 09, 2010 8:54 am
Forum: RouterBOARD hardware
Topic: word to the wise - cold and rb750
Replies: 18
Views: 3435

Re: word to the wise - cold and rb750

The problem ones have been in metal 1x1x2 foot outdoor cabinets (outdoors of course). Ethernet status stays 10/100 according to the backhaul radio (Alvarion 5.8 VL) going into ether1. The RB750 is unreachable though, disappears off the arp tables, ip neighbors, etc.. The box generally contains UPS,...
by RK
Fri Jan 08, 2010 3:48 am
Forum: Wireless Networking
Topic: Solving 20km wireless link issues
Replies: 147
Views: 102297

Re: Solving 20km wireless link issues

Assuming different antennas but exact same alignment and heights, that improves fresnel because of the degree of beamwidth correct? Going from 4 degree to 3 degree increases fresnel simply because its a narrower path? No, the fresnel zone does not depend on the beamwidth of the antenna. It depends ...
by RK
Fri Jan 08, 2010 3:46 am
Forum: Wireless Networking
Topic: Supplying power to equipment on tower installs?
Replies: 17
Views: 2089

Re: Supplying power to equipment on tower installs?

In the past we have always had the luxury to have our equipment on existing buildings and or silos and could access the equipment Easley. Now we are fixing to install equipment on a 400-foot tower!! What are most people doing for this type of install? The install is (2) RB433AH – (3) 120sectors and...
by RK
Sun Jan 03, 2010 7:51 am
Forum: RouterBOARD hardware
Topic: word to the wise - cold and rb750
Replies: 18
Views: 3435

Re: word to the wise

Change your thread subject/title and thanks for the info.
by RK
Sun Jan 03, 2010 7:49 am
Forum: Wireless Networking
Topic: Antenna Alignment 50 PTP Link
Replies: 15
Views: 3527

Re: Antenna Alignment 50 PTP Link

Use a compass for the first side and and the RouterOS align mode for the other side.

Also, as others suggested, it may be wise to start with a 24 dbi panel on the AP side.
by RK
Sat Jan 02, 2010 10:48 am
Forum: Wireless Networking
Topic: Oldest release supporting R5H
Replies: 7
Views: 807

Re: Oldest release supporting R5H

Why u think ROS affect to radio? At least i know it works on 3.30 I am not concerned about radio issues, but driver issues. I got hold of some old RB's that are running 2.9.x etc and i wanted to know if those old Routeros's have the drivers to support R5H UB5 etc Why don't you update the software? ...
by RK
Sat Jan 02, 2010 10:47 am
Forum: Wireless Networking
Topic: 500km link posible?
Replies: 15
Views: 2614

Re: 500km link posible?

here in Matiguas Nicaragua bandwidth is really expensive but 500km away (line of site from mountain near by) is Costa Rica Are you sure you have LOS to 500 km away? The highest point in Costa Rica is 3,819m. In Nicaragua, it is Mogoton at 2,438 m. My calculations show that in the best case scenerio...
by RK
Sat Jan 02, 2010 10:32 am
Forum: Wireless Networking
Topic: Helicopter install pre-assembled solar powered MikroTik
Replies: 8
Views: 1947

Re: Helicopter install pre-assembled solar powered MikroTik

Nice job Matt. i have been running remote mountain top AP's for 5 years now. One thing that has excaped me is how to monitor the remote AP's battery supply with out a lot of costly equipment. How did you do yours?
Mike
Both RB433AH and RB450G have a built in voltage monitor.
by RK
Sun Dec 27, 2009 6:23 am
Forum: Wireless Networking
Topic: VSWR study and affects on Multiple Radio cards
Replies: 1
Views: 664

Re: VSWR study and affects on Multiple Radio cards

I think all most of us can do to test all this stuff is just look at the RX signal strength, CCQ, and actual transfer speed.

The more bits per second go across the link, the better it means the components are.
by RK
Fri Dec 25, 2009 11:44 am
Forum: Wireless Networking
Topic: more radio power, could compensate coax length?
Replies: 9
Views: 1565

Re: more radio power, could compensate coax length?

Increasing TX does not help with RX.
by RK
Thu Dec 24, 2009 7:30 pm
Forum: Wireless Networking
Topic: What's TCP congestion algorithm use ROS (over Wireless)?
Replies: 8
Views: 1713

Re: What's TCP congestion algorithm use ROS (over Wireless)?

That's the cloest thing the routerboard does to congestion algorithm for wireless links. As astounding explained, the TCP stuff is only between the two hosts, not the routers. Yes. A MT device is an host, the other host is an other MT device. Anynone can help me to understand what's algo are used? ...
by RK
Thu Dec 24, 2009 4:28 am
Forum: Wireless Networking
Topic: Centralise Power supply for RB433...
Replies: 10
Views: 4270

Re: Centralise Power supply for RB433...

JJOliver998, I think you may have an issue with your equipment.
20W is certainly more than enough to power a RB433AH with two high power radio cards.
by RK
Thu Dec 24, 2009 4:24 am
Forum: Wireless Networking
Topic: What's TCP congestion algorithm use ROS (over Wireless)?
Replies: 8
Views: 1713

Re: What's TCP congestion algorithm use ROS (over Wireless)?

What's TCP congestion algorithm use ROS (over Wireless)? Any of this or proprietary? http://en.wikipedia.org/wiki/TCP_congestion_avoidance_algorithm Best regards. Here is what you are looking for: http://wiki.mikrotik.com/wiki/Queue#SFQ I not think that it's TCP congestion algorithm... this is QUEU...
by RK
Wed Dec 23, 2009 6:57 am
Forum: Wireless Networking
Topic: What's TCP congestion algorithm use ROS (over Wireless)?
Replies: 8
Views: 1713

Re: What's TCP congestion algorithm use ROS (over Wireless)?

What's TCP congestion algorithm use ROS (over Wireless)?

Any of this or proprietary?

http://en.wikipedia.org/wiki/TCP_conges ... _algorithm

Best regards.
Here is what you are looking for: http://wiki.mikrotik.com/wiki/Queue#SFQ
by RK
Wed Dec 23, 2009 6:55 am
Forum: Wireless Networking
Topic: Virtual-AP with Vlan tagging
Replies: 4
Views: 1449

Re: Virtual-AP with Vlan tagging

can you test performance? Im curious to see if that bridge affects total throughput. It would be nice to just be able to specify a vlan ID on the wireless interface itself. We use all sorts of bridges and vlans all the time. There is no impact on throughput. I also like the way it is now with bridg...
by RK
Mon Dec 21, 2009 11:24 am
Forum: RouterBOARD hardware
Topic: RB750 with 16 ports?
Replies: 2
Views: 687

Re: RB750 with 16 ports?

This has been discussed before. Just get a cheap multi port switch with VLAN support and use it as a port expander.
by RK
Sun Dec 20, 2009 2:38 am
Forum: Wireless Networking
Topic: Solving 20km wireless link issues
Replies: 147
Views: 102297

Re: Solving 20km wireless link issues

pacwireless 32db dual polarity solids ($49 each on ebay!)
Nice. Very nice.
They got more?
by RK
Fri Dec 18, 2009 11:48 am
Forum: Virtualization
Topic: RB750 is Meta router even possible?
Replies: 5
Views: 3889

Re: RB750 is Meta router even possible?

Greetings everyone, Have the situation where i need to setup a meta router on a RB750 for the client to configure their NAT/Firewall seperately from the main router (which is doing ospf for routed subnet with redundant connections to 2 differnt points in the network). Been trying with 4.2 and keep ...
by RK
Fri Dec 18, 2009 11:34 am
Forum: RouterBOARD hardware
Topic: RB411 PCB design changed
Replies: 2
Views: 651

Re: RB411 PCB design changed

If the old ethernet controller chip broke because of ESD, maybe it's good they are using a new one?
by RK
Thu Dec 17, 2009 11:40 am
Forum: RouterBOARD hardware
Topic: RouterOS 4.1
Replies: 12
Views: 1601

Re: RouterOS 4.1

Like this.. i have 2 RB two of them have lvl3 licence, but one of my RB expired and i update it with the new ros, the old one still has the licence, i want to use that licence to this rb.. if its possible (im a noob for mt). Are there some other ways to get my licence back or.. Thanks!! If you have...
by RK
Thu Dec 17, 2009 11:37 am
Forum: Wireless Networking
Topic: bridging 2 mikrotik boards
Replies: 4
Views: 623

Re: bridging 2 mikrotik boards

i have two mikrotik boards set as APs. one is using v4 so i can connect nanostationm5 clients.
i want to bridge these two using ether 2 on both boards. is this possible.
Yes, of course. Why not?
Plug it in, configure correctly, and enjoy.
by RK
Thu Dec 17, 2009 11:35 am
Forum: Wireless Networking
Topic: Mikrotik vs NanoStation M5 AirMax MIMO compatibility
Replies: 4
Views: 5556

Re: Mikrotik vs NanoStation M5 AirMax MIMO compatibility

Airmax is only for Ubiquiti Networks. That is unlikely to ever change.

You could test Mikrotik 802.11n with NanoStation M5 but it's probably not going to be as good as using both AP and CPE from the same brand.
by RK
Tue Dec 15, 2009 10:05 am
Forum: General
Topic: BGP Configuration
Replies: 7
Views: 4181

Re: BGP Configuration

This doesn't look like something to be used with BGP.
BGP is normally for multiple paths on the Internet, not in the LAN.

You probably just need a basic gateway ping and failover configuration.
by RK
Tue Dec 15, 2009 9:36 am
Forum: RouterBOARD hardware
Topic: rb750g downgrade problem
Replies: 14
Views: 2485

Re: rb750g downgrade problem

3.31 must add some support for the rb750/g.. right? is 3.31 the first release for the rb750/g?
It has been said that 3.31 IS 3.30 + support for RB750G.
by RK
Mon Dec 14, 2009 6:59 am
Forum: RouterBOARD hardware
Topic: Simple Queue Not Working
Replies: 3
Views: 3907

Re: Simple Queue Not Working

is it a bridge or a router?
if a bridge, did you enable firewall for bridge?
by RK
Mon Dec 14, 2009 4:26 am
Forum: Wireless Networking
Topic: Recommendations for GSM Repeater
Replies: 0
Views: 476

Recommendations for GSM Repeater

While this is not directly 802.11 related, since many WISPs operate outside cell phone coverage areas, I figure many here know the answer.

What product do you use, and like, for extending GSM coverage where the nearest tower is just too far away for a cell phone to pick up indoors?
by RK
Sun Dec 13, 2009 2:09 am
Forum: RouterBOARD hardware
Topic: RB750 vs RB450
Replies: 47
Views: 23094

Re: RB750 vs RB450

hmm... Did Mikrotik by chance revamp the RB450 a bit? A RB450 I got about 3 weeks ago seems to have 64 Megs of RAM instead of the usual 32 Megs. On a related note, the NAND Size of the RB1000 also seems to have been boosted from 64 Megs to 512. They do that once a while. They take some time to upda...
by RK
Sat Dec 12, 2009 11:18 am
Forum: RouterBOARD hardware
Topic: RB 750 ethernet lock up
Replies: 15
Views: 5094

Re: RB 750 ethernet lock up

Are you using the latest software?
by RK
Sat Dec 12, 2009 11:16 am
Forum: Wireless Networking
Topic: Helicopter install pre-assembled solar powered MikroTik
Replies: 8
Views: 1947

Re: Helicopter install pre-assembled solar powered MikroTik

Can you get up there by any means other than helicopter?

For remote difficult to access sites, I wouldn't use R5H without failover.
The probability of failure is too high.

You may mind find yourself needing to double everything (routerboard, radios, antennas) in the near future to maintain uptime.
by RK
Sat Dec 12, 2009 11:06 am
Forum: Wireless Networking
Topic: Supplying power to equipment on tower installs?
Replies: 17
Views: 2089

Re: Supplying power to equipment on tower installs?

Depends on the height of the tower.
Generally, we like to run multiple cat5e cables and deal with the power and switching in the bottom.

It's cheaper to run a few more cables than having to climb the tower later.
by RK
Sat Dec 12, 2009 11:03 am
Forum: Wireless Networking
Topic: Wifi cards keep blowing
Replies: 17
Views: 3432

Re: Wifi cards keep blowing

is it the R52 or R52H?

Have you seen the other threads in this forum regarding the safe use of omnis?
by RK
Thu Dec 10, 2009 12:25 am
Forum: RouterBOARD hardware
Topic: VLANs VLANs VLANs!!!
Replies: 5
Views: 1134

Re: VLANs VLANs VLANs!!!

Do not use "User Service Tag".
That's like VLAN inside VLAN.
by RK
Tue Dec 08, 2009 7:53 am
Forum: Wireless Networking
Topic: Wifi and 3G interference
Replies: 5
Views: 1126

Re: Wifi and 3G interference

How do you know the sprint card has anything to do with your problem?
by RK
Mon Dec 07, 2009 11:29 pm
Forum: RouterBOARD hardware
Topic: Per interface traffic shaping
Replies: 13
Views: 6855

Re: Per interface traffic shaping

Sure. Put a queue tree rule as follows:
/queue tree add name="ether2" parent=ether2 limit-at=2000000 priority=8 max-limit=0 burst-limit=0 burst-threshold=0 burst-time=0s
Shouldn't it actually be "max-limit"?
limit-at should be empty in this case
by RK
Mon Dec 07, 2009 11:19 pm
Forum: Wireless Networking
Topic: Multiple routerboards in a single enclosure
Replies: 24
Views: 4006

Re: Multiple routerboards in a single enclosure

ne0031, what kind of antennas are these? something highly directional?
by RK
Mon Dec 07, 2009 10:46 pm
Forum: General
Topic: Prioritizing Traffic with Unknown Link Capacity
Replies: 20
Views: 3296

Re: Prioritizing Traffic with Unknown Link Capacity

did u add the passthrough=no on the first 2 mangle rules? Otherwise it will remark everything as "other"
Yes. I checked and the expected traffic is showing up in the expected queue but limit-at is being ignored.

Have any of you seen limit-at work recently?
by RK
Mon Dec 07, 2009 7:11 am
Forum: General
Topic: Prioritizing Traffic with Unknown Link Capacity
Replies: 20
Views: 3296

Re: Prioritizing Traffic with Unknown Link Capacity

With THIS config it will work as advertised. :? :? Just tried it again. 100% fail. If I run a speed test with 20 threads on one computer, and 1 thread on the other, the one with 20 threads gets 90% + of the link. If I flip the test locations, again the computer with more threads gets almost all the...
by RK
Mon Dec 07, 2009 6:58 am
Forum: General
Topic: Prioritizing Traffic with Unknown Link Capacity
Replies: 20
Views: 3296

Re: Prioritizing Traffic with Unknown Link Capacity

CRAP! I just saw my error. I have the parents wrong (which is why it isn't working for you). Try THIS one.
That's one of the combinations I tried yesterday, but it still didn't work.
What is "downstream"? Is that supposed to be the ethernet interface both computers are on?
by RK
Mon Dec 07, 2009 1:04 am
Forum: General
Topic: Prioritizing Traffic with Unknown Link Capacity
Replies: 20
Views: 3296

Re: Prioritizing Traffic with Unknown Link Capacity

I did not include the full implementation. This is closer to complete.
I already did all the packet marks on my own. Thanks tho.
I think "limit-at" is broken, but, before we address that, a question remains, is "max-limit" needed here at all?
by RK
Sun Dec 06, 2009 10:11 am
Forum: General
Topic: Prioritizing Traffic with Unknown Link Capacity
Replies: 20
Views: 3296

Re: Prioritizing Traffic with Unknown Link Capacity

This is a difficult task. The way to do this, would be to set limit-at values. [...] /queue tree add name=Total parent=downstream max-limit=10M add name=download_A limit-at=5M max-limit=10M parent=downstream priority=1 add name=download_B limit-at=2M max-limit=10M parent=downstream priority=2 I tri...
by RK
Sun Dec 06, 2009 6:14 am
Forum: General
Topic: Prioritizing Traffic with Unknown Link Capacity
Replies: 20
Views: 3296

Re: Prioritizing Traffic with Unknown Link Capacity

The problem with doing a speed test is that it would give incorrect results because the link is already in use.
Of course, I can't turn off the users before every test.

The ping solution is decent.
Is that as good as it gets or someone knows something better?
by RK
Sat Dec 05, 2009 10:26 pm
Forum: RouterBOARD hardware
Topic: begginers question,easy for you! :)
Replies: 8
Views: 1074

Re: begginers question,easy for you! :)

Just done that but nothing,winbox can't find its mac address,just blank field.Seems like ports are dead (no light on it) tried on both ports....And this time i bought original adapter of 48v and replace the cables with new ones. Does anybody had same problem,please help? If you can verify that the ...
by RK
Sat Dec 05, 2009 10:22 pm
Forum: Wireless Networking
Topic: Multiple routerboards in a single enclosure
Replies: 24
Views: 4006

Re: Multiple routerboards in a single enclosure

Yes. We do it frequently.
And you aren't bothered by the 50%, or worse, performance hit but the huge amount of interference?
by RK
Sat Dec 05, 2009 10:19 pm
Forum: Scripting
Topic: Automatically Change Frequencies To Compensate for Weather
Replies: 27
Views: 10932

Re: Automatically Change Frequencies To Compensate for Weather

You only change the frequency from 5620 to 5660 and that makes enough difference to solve your ducting/over water wierdness issues?
I don't think it's a ducting issue. I think it's a tide/reflection issue in my case, and, yes, it works.
by RK
Sat Dec 05, 2009 8:27 am
Forum: General
Topic: Prioritizing Traffic with Unknown Link Capacity
Replies: 20
Views: 3296

Prioritizing Traffic with Unknown Link Capacity

This question has come up a few times on the forums but I have yet to see any solutions posted. Suppose I have a wireless link on which the speed varies between 7 Mbps and 10 Mbps depending on the weather. At the end of the link I have a routerboard with two computers (on different vlans, or etherne...
by RK
Sat Dec 05, 2009 5:09 am
Forum: RouterBOARD hardware
Topic: RB411AR Power Needs - FYI
Replies: 5
Views: 1175

Re: RB411AR Power Needs - FYI

FYI :) 12V 500mA power supply is not sufficient for RB411AR with ROS 4.3 - it does work (even with disabled miniPCI wlan interface) unless you enable on-board or miniPCI wireless interface Powered through power jack. Of course not, that's only 6W! Did you read the specs? What specs are you looking ...
by RK
Sat Dec 05, 2009 5:05 am
Forum: RouterBOARD hardware
Topic: begginers question,easy for you! :)
Replies: 8
Views: 1074

Re: begginers question,easy for you! :)

Don't bother with serial.
Use MAC Winbox.

http://wiki.mikrotik.com/wiki/Initial_M ... Connection
by RK
Sat Dec 05, 2009 4:56 am
Forum: Wireless Networking
Topic: Superchannel free from v4.3
Replies: 12
Views: 2660

Re: Superchannel free from v4.3

Excellent

/me goes to upgrade
by RK
Sat Dec 05, 2009 4:55 am
Forum: Wireless Networking
Topic: rb433ah + nanostation 5 performance problem
Replies: 4
Views: 1888

Re: rb433ah + nanostation 5 performance problem

Try reducing the PPS rate on the cameras and use bigger packets
by RK
Thu Dec 03, 2009 9:39 pm
Forum: RouterBOARD hardware
Topic: RB411AR Power Needs - FYI
Replies: 5
Views: 1175

Re: RB411AR Power Needs - FYI

FYI :)
12V 500mA power supply is not sufficient for RB411AR with ROS 4.3 - it does work (even with disabled miniPCI wlan interface) unless you enable on-board or miniPCI wireless interface

Powered through power jack.
Of course not, that's only 6W!
Did you read the specs?
by RK
Tue Dec 01, 2009 8:34 am
Forum: Wireless Networking
Topic: Low temperature environment
Replies: 14
Views: 1691

Re: Low temperature environment

Peltier junctions are relatively inexpensive and operate at 12v.
A heater is cheaper and easier to use.
by RK
Tue Dec 01, 2009 8:30 am
Forum: RouterBOARD hardware
Topic: RB750 PoE on all ports Mod
Replies: 52
Views: 31011

Re: RB750 PoE on all ports Mod

This is something I'd like to know too. The reply you got about 'bridging' applies to the network-level bridging (ie. letting Ethernet traffic pass from one port to another), but what you (and I) are looking for is to know what happens if we: We have two RB433s, let's call them RB433-1 and RB433-2 ...
by RK
Mon Nov 30, 2009 4:14 am
Forum: Wireless Networking
Topic: RTS/CTS - Insane improvements
Replies: 13
Views: 3105

Re: RTS/CTS - Insane improvements

I stand corrected. The wireless test package needs to be loaded on the AP's not the CPE.
That's right.
by RK
Sun Nov 29, 2009 10:25 pm
Forum: Wireless Networking
Topic: RTS/CTS - Insane improvements
Replies: 13
Views: 3105

Re: RTS/CTS - Insane improvements

I was aware that the wireless beta package had significant improvements for nstream, and while some drop in latency (especially while the station was idle) was apparent, i dont think the improvements were as drastic as what i am seeing now. My understanding is that RTS/CTS is disabled when nstreme ...
by RK
Sun Nov 29, 2009 10:34 am
Forum: Wireless Networking
Topic: Wireless vs Wind
Replies: 11
Views: 1446

Re: Wireless vs Wind

How long is your link? What kind of terrain? How is the LOS?

We need a lot more info.
by RK
Sun Nov 29, 2009 10:32 am
Forum: Wireless Networking
Topic: RTS/CTS - Insane improvements
Replies: 13
Views: 3105

Re: RTS/CTS - Insane improvements

Hi Finally, our entire network (as per my post) is running nstream with polling - the smokeping graphs were after implimenting RTS/CTS AS WELL AS nstream - you can see the difference yourself :) Wait a moment. You might be seriously confused here. Did you try the wireless beta package WITHOUT RTS/C...
by RK
Sun Nov 29, 2009 10:27 am
Forum: Wireless Networking
Topic: Why does one client bring down entire network?
Replies: 35
Views: 6317

Re: Why does one client bring down entire network?

I noticed when one client's radio is enabled, he brings down all other 7 clients causing timeouts. I've set AP TX and Client TX limits, but it doesn't seem make much difference. Looking at the 15 second snapshot of clients traffic, there are 215 destinations with loads of small packets. Are you sur...
by RK
Sun Nov 29, 2009 10:24 am
Forum: Wireless Networking
Topic: Low temperature environment
Replies: 14
Views: 1691

Re: Low temperature environment

We use them in Winnipeg where the temperature goes from -40C to +40C and they work.

Make sure you have good enclosures that will keep in the heat generated by the board itself.
by RK
Sun Nov 29, 2009 10:18 am
Forum: RouterBOARD hardware
Topic: I am a happy new owner of a f*****g new 300Mhz RB750
Replies: 1
Views: 629

Re: I am a happy new owner of a f*****g new 300Mhz RB750

congrats and thanks for sharing
by RK
Sun Nov 29, 2009 10:18 am
Forum: RouterBOARD hardware
Topic: RB750G revealed!
Replies: 37
Views: 22008

Re: RB750G revealed!

adrianatkins, maybe it's too early in the morning, but ... what ?

:)
Probably something to do with his status at the "other" forum.
by RK
Sun Nov 29, 2009 10:16 am
Forum: RouterBOARD hardware
Topic: RB411AH - performance
Replies: 2
Views: 626

Re: RB411AH - performance

It's a question of bits and packets much more than the number of users.

On average, it will work.
by RK
Sun Nov 29, 2009 10:15 am
Forum: RouterBOARD hardware
Topic: RB1000 too slow
Replies: 10
Views: 2925

Re: RB1000 too slow

VX?
Yeah, what is VX?
by RK
Sun Nov 29, 2009 10:01 am
Forum: RouterBOARD hardware
Topic: Running out of bandwidth - Ideas?
Replies: 11
Views: 2359

Re: Running out of bandwidth - Ideas?

We are co-located with Industry Canada at one of our sites. Canadian, Eh? Where are you? You could replace one of your nstreme links with a 802.11n 40 MHz link using a powerful routerboard or ubnt rocket. It will give you more bandwidth than 40 MHz with 802.11a. You bond this link, with fail-over e...
by RK
Sun Nov 29, 2009 9:37 am
Forum: RouterBOARD hardware
Topic: Strange problem setting up 450G
Replies: 7
Views: 1558

Re: Strange problem setting up 450G

I'm normally running at very low CPU % but still the devices do get very hot.
Yes, they do get hot, but they appear to be designed for that.
by RK
Sun Nov 29, 2009 9:36 am
Forum: RouterBOARD hardware
Topic: How To 450 And 450G
Replies: 3
Views: 1093

Re: How To 450 And 450G

Hi i have a 450 and 450G
i want to use the ports (interface)1-4 as a switch With port 1 static ip (upload) and port 5 as DHCP Router, with only a 512kbs download and 128 upload traffic, shapping, Thanks in advance.
If you want someone to do all the work for you, you should expect to pay.
by RK
Wed Nov 25, 2009 7:53 am
Forum: Wireless Networking
Topic: LIST of OMNI's That wont kill your radios
Replies: 32
Views: 6212

Re: Same Problem here in Brazil

Hi folks, I have same problem here in Brazil.
A Have a tower under a high hill, with rb433ah. I´ve already tried a lot of card, engenius, ROuterboard R52h, and all the cards survive for a couple days.
So , any Ideias?
Did you try any of the XR cards?
by RK
Mon Nov 23, 2009 9:57 pm
Forum: Wireless Networking
Topic: Wireless vs Wind
Replies: 11
Views: 1446

Re: Wireless vs Wind

Did you have any rain with the wind?
by RK
Sat Nov 07, 2009 8:55 pm
Forum: Wireless Networking
Topic: First time i've seen this error on my board.
Replies: 8
Views: 1012

Re: First time i've seen this error on my board.

I think Tim is on the right track. Sounds like a lack of power.
by RK
Fri Nov 06, 2009 11:01 am
Forum: RouterBOARD hardware
Topic: rb750 400MHz
Replies: 31
Views: 8114

Re: rb750 400MHz

Still, an absolutely awesome home or mom/pop business router for a mere 40 bucks.... you get TONS of capabilities!
Why only mom/pop business?
We have RB450 devices, which we installed before the RB750 came out and has similar specs, at offices with dozens of workstations.
by RK
Fri Nov 06, 2009 10:49 am
Forum: RouterBOARD hardware
Topic: Problem with new rb 450G
Replies: 6
Views: 1028

Re: Problem with new rb 450G

how much power are you feeding it and how?
by RK
Fri Nov 06, 2009 10:48 am
Forum: RouterBOARD hardware
Topic: R5H problems
Replies: 72
Views: 17333

Re: R5H problems

lost another R5H in production today :(
The routerboard doesn't even show it in the PCI list.
by RK
Fri Nov 06, 2009 10:47 am
Forum: Wireless Networking
Topic: RouterOS not forwarding MAC addresses?
Replies: 12
Views: 1507

Re: RouterOS not forwarding MAC addresses?

I think we've solved our issues here. The radios remained linked, but WDS simply stops with the error "excessive data loss. sent deauth". It retries a few times, then simply gives up. We're using 20dB-gain grids, but the adapters are a little rough thanks to improvisation. We have two dual-polarity...
by RK
Fri Nov 06, 2009 10:46 am
Forum: Wireless Networking
Topic: Mikrotik and OpenWrt mesh network ad-hoc mode
Replies: 10
Views: 2771

Re: Mikrotik and OpenWrt mesh network ad-hoc mode

is your routeros client in statios-wds or ap-bridge mode?
by RK
Fri Nov 06, 2009 10:44 am
Forum: Wireless Networking
Topic: Smoth hopping on roaming mobile client, is this possible?
Replies: 6
Views: 2107

Re: Smoth hopping on roaming mobile client, is this possible?

How can I perform a fast switching from one radio to the other? What mechanism would make this decision to use the secondary pathway?
Use WDS + RSTP bridge.
by RK
Fri Nov 06, 2009 10:42 am
Forum: Wireless Networking
Topic: 24V Solar
Replies: 2
Views: 545

Re: 24V Solar

Watch out for the Overvoltage protection. Otherwise, all is well.
Higher voltage = less loss due to resistance.
by RK
Fri Nov 06, 2009 10:39 am
Forum: Wireless Networking
Topic: Redundancy via ISP
Replies: 2
Views: 489

Re: Redundancy via ISP

don't double post
by RK
Fri Nov 06, 2009 10:38 am
Forum: Wireless Networking
Topic: Multiple routerboards in a single enclosure
Replies: 24
Views: 4006

Re: Multiple routerboards in a single enclosure

Running 6 5ghz radios with 2 on the same frequency hasn't posed a problem yet (in 20 vertical feet.)
You have two 5 GHz radios on the same frequency and in the same enclosure?!
by RK
Fri Nov 06, 2009 10:35 am
Forum: Wireless Networking
Topic: Redundancy via ISP
Replies: 2
Views: 569

Re: Redundancy via ISP

Yes, you can share all 3 ISPs between the two locations.
You are in the wrong part of the forum.

Check RouterOS forum and the wiki for examples.
by RK
Mon Nov 02, 2009 8:47 am
Forum: Wireless Networking
Topic: RouterOS not forwarding MAC addresses?
Replies: 12
Views: 1507

Re: RouterOS not forwarding MAC addresses?

Unfortunately this method did NOT work. We suffered a network blackout when the new settings were applied, which required a trip up the mountain to fix.
The method does work - you just need to do it correctly.
Also, use Safe Mode to prevent most mistakes which require leaving the office.
by RK
Mon Nov 02, 2009 8:44 am
Forum: Wireless Networking
Topic: STA-to-STA connections
Replies: 1
Views: 524

Re: STA-to-STA connections

Disable "Default Forward" in the Wireless tab of the wlan interface and see if it helps.
by RK
Mon Nov 02, 2009 8:40 am
Forum: Wireless Networking
Topic: 23 Miles over water. N?
Replies: 8
Views: 1453

Re: 23 Miles over water. N?

Did you read my post and the solution for long links over water?
http://forum.mikrotik.com/viewtopic.php?f=9&t=31644
by RK
Mon Nov 02, 2009 8:36 am
Forum: Wireless Networking
Topic: Multiple routerboards in a single enclosure
Replies: 24
Views: 4006

Re: Multiple routerboards in a single enclosure

Radio interference is something to keep in mind.

In some situations, heat is also a consideration.
by RK
Mon Nov 02, 2009 7:52 am
Forum: Wireless Networking
Topic: Poor wireless signal after upgrading from 3.28 to 4.2
Replies: 6
Views: 1268

Re: Poor wireless signal after upgrading from 3.28 to 4.2

Did you try 3.30 with the wireless test package instead?
by RK
Mon Nov 02, 2009 7:51 am
Forum: Wireless Networking
Topic: RB 433 shortcomings?
Replies: 1
Views: 510

Re: RB 433 shortcomings?

There is no license limit for number of TCP connections.
It is, however, limited by the RAM, CPU, and your network design.
by RK
Mon Oct 19, 2009 1:51 pm
Forum: Wireless Networking
Topic: Hotel Deployment
Replies: 27
Views: 3847

Re: Hotel Deployment

a managed PoE rackmount switch Got a model number for this? 3Com, Cisco, Netgear and Planet all make them, but I've found those work best with IP phones or the older MikroTik kit that will run on 48V. Korenix IP camera switches work very will with MikroTik. The 48V PoE switches are easy to find, it...
by RK
Sun Oct 18, 2009 7:44 am
Forum: Wireless Networking
Topic: Hotel Deployment
Replies: 27
Views: 3847

Re: Hotel Deployment

a managed PoE rackmount switch
Got a model number for this?
by RK
Sun Oct 18, 2009 7:37 am
Forum: General
Topic: How to prevent this loop situation ?
Replies: 3
Views: 843

Re: How to prevent this loop situation ?

Search the forum. Someone suggested a solution based on pinging a host known to be good and taking action based on the type and number of packets which return to detect a loop.
by RK
Sun Oct 18, 2009 7:33 am
Forum: Wireless Networking
Topic: where do i get the rstp-bridge-test packed for routeros 4.1?
Replies: 3
Views: 699

Re: where do i get the rstp-bridge-test packed for routeros 4.1?

isn't it just built into some other package?
by RK
Thu Oct 15, 2009 10:15 am
Forum: Wireless Networking
Topic: Hotel Deployment
Replies: 27
Views: 3847

Re: Hotel Deployment

You need dozens of access points all over the building, not 4.
Figure at least 30.
by RK
Thu Oct 15, 2009 3:14 am
Forum: RouterBOARD hardware
Topic: RB750 vs RB450
Replies: 47
Views: 23094

Re: RB750 vs RB450

I think it's a brand new product.
Someone is thinking along the right lines.
by RK
Thu Oct 15, 2009 2:52 am
Forum: Wireless Networking
Topic: Crazy Signal Drop and Recovery
Replies: 1
Views: 565

Crazy Signal Drop and Recovery

I have an RB433AH with 2xR5H connected to two 90 degree pac wireless sectors. The one on the West side has always worked just fine. However, the one on the East wide acts VERY strange every couple of weeks: One week graph: http://rontec.net/files/normalsignal.png One day graph: http://rontec.net/fil...
by RK
Tue Oct 13, 2009 3:00 am
Forum: RouterBOARD hardware
Topic: RB750 PoE on all ports Mod
Replies: 52
Views: 31011

Re: RB750 PoE on all ports Mod


if you plug power into the RB433 via teh dc jack wil there be PoE (out) on the PoE ethernet port?
I think there is a diode to prevent this. But you could remove the diode, at your own risk.
by RK
Mon Oct 12, 2009 8:53 am
Forum: Wireless Networking
Topic: R5H and power consumption
Replies: 1
Views: 507

Re: R5H and power consumption

Assuming linear power usage, I don't see how 2 radio cards each doing 5 Mbps could ever use less power than 1 radio card doing 10 Mbps.

Perhaps manually reduce the TX power of the R5H if your clients have enough signal?
by RK
Fri Oct 09, 2009 8:31 am
Forum: RouterBOARD hardware
Topic: RB750 PoE on all ports Mod
Replies: 52
Views: 31011

Re: RB750 PoE on all ports Mod

Now, how do we add remote reboot to this?
by RK
Sun Aug 23, 2009 7:59 pm
Forum: Wireless Networking
Topic: R5H vs. XR5
Replies: 3
Views: 731

Re: R5H vs. XR5

R5H has lower power and slightly throughput BUT they are less reliable than the XR5.
The R5H has a much higher failure rate than the XR5.
by RK
Sun Aug 23, 2009 7:57 pm
Forum: Wireless Networking
Topic: Linking two rooms at high speed.
Replies: 1
Views: 387

Re: Linking two rooms at high speed.

If it's only 10m, just run a cable. You are not going to get over 100 Mbps TCP.
by RK
Fri Aug 21, 2009 4:09 pm
Forum: Wireless Networking
Topic: Wireless ISP structure ideas please?
Replies: 14
Views: 2285

Re: Wireless ISP structure ideas please?

on that distance, forget the omni. buy a RB433 and install 3 sectors directional antennas (pannels)
I strongly disagree. Why would he need directional antennas for ONLY 3 KM?
by RK
Thu Aug 20, 2009 4:23 pm
Forum: Wireless Networking
Topic: a humble request!!!!!
Replies: 12
Views: 1579

Re: a humble request!!!!!

how would it know this distance :shock: ?
Based on the dynamic ack timeout that it already calculates!
by RK
Thu Aug 20, 2009 4:22 pm
Forum: Wireless Networking
Topic: why my mikrotik got hanged most of the times?
Replies: 8
Views: 1266

Re: why my mikrotik got hanged most of the times?

Do you have all these routerboards plugged into good UPS devices?
by RK
Thu Aug 20, 2009 4:19 pm
Forum: Wireless Networking
Topic: Wireless ISP structure ideas please?
Replies: 14
Views: 2285

Re: Wireless ISP structure ideas please?

Old man, what is the distance between the base point and the antenna client? others, I use 8db omni and directional 14db for less thank 1Km and I get 40db!! not good. Should I buy better antennas? thanks You have too much signal. It's like someone screaming in your ear - you can hear them, but can'...
by RK
Thu Aug 20, 2009 4:14 pm
Forum: Wireless Networking
Topic: Solving 20km wireless link issues
Replies: 147
Views: 102297

Re: Solving 20km wireless link issues

Hello,

Please tell me where do You generate that nice signal graphs?
I use mojiro's cacti template from http://forum.mikrotik.com/viewtopic.php?f=2&t=21189
by RK
Wed Aug 19, 2009 2:01 pm
Forum: Wireless Networking
Topic: Wireless ISP structure ideas please?
Replies: 14
Views: 2285

Re: Wireless ISP structure ideas please?

- Get rid of the 386. Get a RouterBoard 411A instead. - Get rid of the amplifier. Use your money for a high quality radio card and antenna instead - will work MUCH BETTER. - The client side probably needs to be in "bridge" or "client" mode. - I recommend you use MikroTik or Ubiquiti equipment on the...
by RK
Wed Aug 19, 2009 1:55 pm
Forum: Wireless Networking
Topic: 802.11n Solution - Router Board and Mini PCI Card
Replies: 2
Views: 702

Re: 802.11n Solution - Router Board and Mini PCI Card

Is this a PtP or PtMP link?
What capacity do you need?
by RK
Tue Aug 18, 2009 12:40 am
Forum: Wireless Networking
Topic: Has anyone tried a DBii F-50 mPCI card?
Replies: 4
Views: 1233

Re: Has anyone tried a DBii F-50 mPCI card?

That's odd. I know you can fit two XR5 in one RB433 and this card seems to be about the same size.
Anyway, it seems to cost more than the XR5 so we stick with the R5H and XR5.
by RK
Tue Aug 18, 2009 12:38 am
Forum: Wireless Networking
Topic: Identify XR2 or SR2
Replies: 1
Views: 363

Re: Identify XR2 or SR2

look at the default TX power it is reporting
by RK
Mon Aug 17, 2009 3:03 am
Forum: RouterBOARD hardware
Topic: Outdoor case: metallic or plastic?
Replies: 17
Views: 2516

Re: Outdoor case: metallic or plastic?

I use the Laird/Pac Wireless DCE-H-7x6x2 for RB411 and RB532 family boards and The larger case that SurferTim pointed out for larger boards We use the same enclosures in Panama, where it is summer 365 days a year, and I never had a 400 series routerboard fail due to heat. Just make sure your boxes ...
by RK
Sun Aug 16, 2009 4:49 pm
Forum: Wireless Networking
Topic: How to get linked station's current frequency?
Replies: 4
Views: 1341

Re: How to get linked station's current frequency?

but that doesn't actually show you which frequency the station is connected on.
You can try /log print.
by RK
Sun Aug 16, 2009 6:58 am
Forum: Wireless Networking
Topic: Interresting Wireless Interface "Fix"
Replies: 2
Views: 544

Re: Interresting Wireless Interface "Fix"

Or, instead of doing all this, you can simply follow the "manual" and click the "update license" button in routeros v4.
by RK
Sun Aug 16, 2009 6:55 am
Forum: Wireless Networking
Topic: Solving 20km wireless link issues
Replies: 147
Views: 102297

Re: Solving 20km wireless link issues

If you think your link is odd, consider this image for a 1.5km city link with perfect visual LOS:
Image

As you can see, it regularly goes from between -50 to -70.
by RK
Tue Aug 11, 2009 1:40 am
Forum: Wireless Networking
Topic: Country settings with most available channels?
Replies: 11
Views: 9490

Re: Country settings with most available channels?

czech republic gives more channels Actually its LESS channels for 5G turbo. What frequency mode are you talking about? Or are you just stooging around, confusing people on the forums ? ;) But it is MORE channels for 5 GHz (20 MHz) and he was responding to doush who wrote about 5 GHz. Sounds like yo...
by RK
Mon Aug 10, 2009 12:53 pm
Forum: Wireless Networking
Topic: wds + nstream
Replies: 3
Views: 891

Re: wds + nstream

What exactly is your question? The notes are CORRECT.

When using Nstreme, there MUST be an AP and a client.
You can't have two APs.
by RK
Sun Aug 09, 2009 5:05 am
Forum: Wireless Networking
Topic: Solving 20km wireless link issues
Replies: 147
Views: 102297

Re: New 20km link, weird interference.

The Pac 28 dB grid I tried seemed to be more like a 20 dB in the real world.
Really? I have a few in the field and they do seem to be in the 28 dB area.
Either that, or the 24 dB panel antennas are really 16 dB.
by RK
Fri Aug 07, 2009 8:58 am
Forum: RouterBOARD hardware
Topic: Lock-up LAN in RB450G
Replies: 2
Views: 715

Re: Lock-up LAN in RB450G

sounds like wrong settings
by RK
Fri Aug 07, 2009 8:58 am
Forum: RouterBOARD hardware
Topic: 24 Port Routerboard-based Managed Switch
Replies: 2
Views: 1021

Re: 24 Port Routerboard-based Managed Switch

I suppose you could take a x86 computer and stick a bunch of multi port network cards in it.

Another option is to get a basic 24 port switch that supports VLANs and send all traffic via a routerboard port.
by RK
Wed Aug 05, 2009 7:21 pm
Forum: Wireless Networking
Topic: 28V or 26V POE Injector
Replies: 18
Views: 3119

Re: 28V or 26V POE Injector

You can use a 48-60v Power Supply with a passive PEO, and build your own DC-DC converter to regulate at 12 or 24 volt.
All the small voltage regulators I can find that output 12V or 24V, take only up to 35V as input.
by RK
Wed Aug 05, 2009 1:32 am
Forum: RouterBOARD hardware
Topic: RB750 vs RB450
Replies: 47
Views: 23094

Re: RB750 vs RB450

Please PM me if you know of others who would be interested in this type of case. If we could get a reasonable number (maybe 50 or so) together, we could get the cases made up at prices that won't break the bank. Count me in for a few units. This forum does not support PM, so post your email address...
by RK
Wed Aug 05, 2009 1:28 am
Forum: Wireless Networking
Topic: When Mikrotik support 11n mimo (SR71-5)
Replies: 62
Views: 19636

Re: When Mikrotik support 11n mimo (SR71-5)

"Turbo N" sucks just like "Turbo A" at longer distances unless there is a clean LOS between the two points.
I don't agree with that. I find that even in weak signal situations, turbo is sometimes better than regular. You won't know until you try in each situation.
by RK
Sat Aug 01, 2009 11:23 pm
Forum: Wireless Networking
Topic: 28V or 26V POE Injector
Replies: 18
Views: 3119

Re: 28V or 26V POE Injector

how many volts do you end up with at the other end when using the 24v PoE adapter? Test it while it's running ...
The RB433AH is reporting 19.7 V under light load.
by RK
Sat Aug 01, 2009 8:35 pm
Forum: Wireless Networking
Topic: 28V or 26V POE Injector
Replies: 18
Views: 3119

Re: 28V or 26V POE Injector

I'm bumping this up in case there is a new product out there.
by RK
Sat Aug 01, 2009 10:53 am
Forum: Wireless Networking
Topic: Discover physical wireless MAC or reset wireless mac
Replies: 4
Views: 643

Re: Discover physical wireless MAC or reset wireless mac

Maybe /interface wireless reset-configuration?
by RK
Thu Jul 30, 2009 6:53 pm
Forum: Wireless Networking
Topic: Script to Auto change to select better Signal APs...
Replies: 3
Views: 542

Re: Script to Auto change to select better Signal APs...

Just wonder know, What's the language we can use to write the script for the Mikrotik RouterOS...
RTFM.
by RK
Thu Jul 30, 2009 12:43 pm
Forum: Wireless Networking
Topic: Wireless backhaul of my hot-spot is over a sea. Please, help
Replies: 10
Views: 3174

Re: Wireless backhaul of my hot-spot is over a sea. Please, help

Despite the naysayers, this thread http://forum.mikrotik.com/viewtopic.php?f=9&t=31644, explains how I created a fast and reliable 5 GHz link across 20 miles of pacific ocean.
by RK
Thu Jul 30, 2009 12:43 pm
Forum: Scripting
Topic: Canadian contractor
Replies: 4
Views: 1082

Re: Canadian contractor

It will be difficult to find someone in Toronto that uses Mikrotik because there are no WISPs in/near Toronto AFAIK.
Are you sure this can't be done remotely?
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