MikroTik

infowest

Any specs on temperature limits for the RB750Gr3?

infowest

... But it does work on the RB2011L FastE ports.

infowest

No luck with cable monitoring in RC4 on RB750GL.

infowest

I believe it's not working at all on RB750GL. I tried on 5.21, then upgraded to the 6.0RC: [admin@WestRidgeSwitch1] /interface ethernet> /sys resource print uptime: 16m15s version: 6.0rc3 free-memory: 50348KiB total-memory: 61876KiB cpu: MIPS 24Kc V7.4 cpu-count: 1 cpu-frequency: 400MHz cpu-load: 2%...

infowest

Will it work above 28v then, which we often need in solar sites?

infowest

I sure hope you guys make it by August for the RB/750UP. A couple questions if you can answer them Normis (or whoever): - Will it have the 400mhz processor speed, or the faster RB750G-style processor? - Will it have a higher temperature rating like the RB750GL? - Will it have a 30V DC tolerance, or ...

infowest

I've noticed this bug does not seem to appear on 411 boards, just 711.

infowest

Hi, what I see nv2 on MtMP links no performance improvment. We tested 1 AP (A-Band) with 12 clients which was running for 2 years with nstreme. We are able to get around 12-16 Mbits to the clients. After upgrading to 5.0rc1 we swichted to nv2 and got only 8-10 MBit/s., bad ping times - 25 - 200 ms ...

infowest

Running on a new Rb711-5Hn-MMCX 5.0RC1 on both AP and client I have ether1 and wlan1 bridged, one host connected to ether1 (tried a PC and a router - same results) The host pops up in the bridge hosts list for a second and then goes away. Randomly appears again, then goes away. Device behind ether1 ...

infowest

I'm using 5.0RC1 in a couple scenarios: 1. AP with 10 subscribers. All running 802.11A with Nv2. Working great, seemed to get 10-15% better actual throughput vs nstreme. WDS bridged subscribers. 2. PTP - A few links with N cards, a few with A. All seem to work very well. Better latency, higher throu...

infowest

Fixed! 5.0RC1

infowest

Band: 5Ghz-only-N Channel width: 10Mhz Data rates tab: default HT tab: chain 0 checked. HT Guard Interval: any HT Extension Channel: disabled HT AMPDU Priorities: 0 is checked. HT Supported MCS: all checked HT Basic MCS: 0-7 are checked. TX / RX rate shows 32.5Mbps On a pair of RB433AH's with R52hn's

infowest

Mimo / 802.11n?

infowest

Further tests show only ~19M UDP thruput on the 10mhz channel, while I was getting ~43 on 20mhz. Is the 10mhz channel really running N, or is it A?

infowest

Just tested on a link that is running 5.0b6, Nv2. Looks like it all works fine. You can choose A, A/N or Only N, then you choose the width separately. 5, 10, 20, 40 are the options. The reported connect speed is the actual connect speed, ie. 37.5M instead of 65M/2 in a 10mhz channel. Good job Mikrot...

infowest

I would love to have a 900mhz mimo card to run in my Mikrotiks with Nstreme v2.. That would keep me from having to go to UBNT for some planned rural projects.

Any chance? Or does anyone know of another manufacturer?

infowest

Is there a plan to make Nv2 work with WDS, or is that not going to be possible? I'd love to test some PTMP networks, but my current design needs WDS. I have not had the best of luck with MPLS, and it's overkill for this type of network. My clients are authenticating with PPPOE behind their CPE (Rb41...

infowest

Try it on port 2-9.

infowest

I have an AP with a little more than a dozen customers on it. There is an R52N card in the AP. Was previously running 4.4, using 5Ghz, 10mhz wide channels. Worked fine for months. Upon upgrading to 4.9, no clients can connect. Downgrade back to 4.4 and they are back. I've seen a couple other posts a...

infowest

MyThoughts: Your assumption is incorrect.

We had 10mhz channels running fine in 4.4 on R52N for months, but they broke when we upgraded to 4.9.

I don't think it's a R52N problem, it's a RouterOS problem.

We just downgraded back to 4.4 and our customers came back up.

Let's get this fixed!

infowest

We had 10mhz channels running fine in 4.4 for months, but they broke in 4.9.

I don't think it's a R52N problem, it's a RouterOS problem.

We just downgraded back to 4.4 and our customers came back up.

Let's get this fixed!

infowest

Distance is only calculated in non-nstreme mode.

infowest

[/quote]

Sorry infowest where to check about the calculated Distance when i set it up to dynamic?

regards
Ros[/quote]

I found it finally under /interface wireless monitor 0

Randy

infowest

Another 7.5km link with N, non-nstreme and vpls was working fair under 4.5. Now under 5.0b2, much better. It calculated the distance at 9km. Tried 7 and 8, but 9 seemed to give best CCQ - now in the high 90's vs 70-80's before. Wonder if the new distance settings don't work with WDS? Also wonder if ...

infowest

In 5.0Beta2:

/int wireless set 0 ?
....
tdma-additional-txrxguard
tdma-debug
tdma-override-rate
tdma-override-size
...

Please tell us there will be GPS sync!

Randy

infowest

Are you looking to replace nstreme with TDMA, or supplement Nstreme with TDMA? /int wireless set 0 ? .... tdma-additional-txrxguard tdma-debug tdma-override-rate tdma-override-size My first try with non-nstreme N on a long link (35km) didn't work out at all. I would get a sporadic ping across the li...

infowest

If dynamic distance estimate is erratic: obvious huge difference from actual
distance (>3km), significantly different distance estimate in multiple
registrations between the same devices, it is advised to change over to static
distance setting.

Where do you see the current estimated distance?

infowest

*) improved 802.11 operation for outdoor distances;

Does this refer to the ack-timeout change, or are there improvements in nstreme as well? For N?

infowest

I finally got a fairly stable link here. I think either the HT AMPDU priorities were a problem, or the periodic calibration. It still does not work with Nstreme (very high latency).

Hopefully they are working on nstreme so we can do some longer links that non-nstreme won't handle

Randy

infowest

How long are your links?

The periodic retry disable was one I had not heard / tried before. I'll give it a try.

-- Edit:

Nope, no difference.

infowest

Thanks JP. I guess you and I are in the same boat.. we don't know what we're doing because we haven't been in this business 10 years like spire2z has

infowest

Glad to hear you know what you are doing.

Are you getting decent ping times with load (say 10-15M load?). I'm not. Based on my original post, can you make any recommendations on what to change that has worked for you? If not, thanks for your time anyway.

infowest

What are ping times like when the pipe is half full? With those ping times and drops, there is no way I could call that a usable backhaul.

infowest

Board firmware (/system routerboard print) is upgraded to latest. HW Retries is 15.

infowest

Noticing a pattern here. Short links (1 mile or so) seem to be working for people. Longer links (4 miles is the shortest "long" link I've tried) not so much. Seems like the problem may be in the timing? I have another new link that is around a mile, dual polarity, no extension channel, not...

infowest

Yup, tried HT-Ext, no go.

How long is your link and what is your RSSI like?

infowest

Can you give some details on how you made them work? Are you using nstreme? Any other special settings?

infowest

Well, no reply here, nor from support@mikrotik.com Mikrotik is really dropping the ball on "N" and seems to be turning a blind eye to this problem. I would love to be disproved on this point. In the past, for reliable, affordable backhaul links, Mikrotik was the only way to go. Now they ar...

infowest

I have a 4.4 mile, single chain 802.11A link that is working perfectly. -68 signal strength on both ends. 100/100% CCQ. Good clear line of site. Running 4.5. Pushing 10-15M across it at most times. RB411AH boards. Using MPLS / VPLS bridge. CPU hovers around 25%. 2-3ms ping times (from my office). Wh...

infowest

Thanks MyThoughts.

Just curious if anyone knows how Ubiquity is doing 10mhz channels in N? Are they not using atheros chips?

infowest

Are there any plans to support 802.11N in 10mhz wide channels? I'd like to do this in a purely Mikrotik-to-Mikrotik Nstreme PTMP application.

infowest

Wait (with the rest of us) for routeros to be fixed to work with long "n" links, and for nstreme to work with "n".

Not a great answer, but the truth.

Randy

infowest

Were there any wireless changes in 4.4? I have some test links with r52n's I can try.

infowest

Were there any wireless changes in 4.4? I have some test links with r52n's I can try.

infowest

What is the RouterOS version and Bootloader version?

/system resource print
/system routerboard print

Make sure your bootloader is the latest "upgrade-version" by doing a

/system routerboard upgrade

What do you see under

/system watchdog print

infowest

Did you check the boot loader?

/system routerboard print

if the upgrade-firmware is a different version than the current-firmware, be sure to do:

/system routerboard upgrade

infowest

It actually did even out when I put a matching card on the other side. Both are still in "A" mode until Mikrotik gets nstreme working for 802.11n

Randy

infowest

I just replaced an R5H with a new Compex WLM200N5-26 card in anticipation of moving to N on this link. For now it's 802.11a. The other end is still an R5H. Both sides running RouterOS 4.2. The rcv signal strength reported on the new card is -83. On the R5H side, it is -50. Cards are linking up at 54...

infowest

I know that nstreme automatically adjust ACK timeouts to stabilize long links, but that nstreme is not yet ready to do that with "n" links. Has anyone tried manually adjusting ACK to get long links working? Does the ACK timeout adjustment parameter even work with N? Any idea what we should...

infowest

I'm having a very strange problem after upgrading two separate PTP links to 4.2. On occasion these PTP links will lose the wireless connection due to interference, someone putting a big rig in front of an antenna, birds, or whatever. No big deal in the past. In a few seconds they come back up and al...

infowest

I did end up deploying it with A for now, anxiously awaiting the time I can upgrade the link to N with a software upgrade

infowest

Perseverance pays off. :) I ended up being able to get to the far side with a very slow unstable connection, and made some changes. I ended up on single chain 802.11n with nstreme and it seems to be working well. Will try with more traffic later today. I set the far side to 5GHZ-a/n so I can fall ba...

infowest

So far no dice on a 100km link with just one chain on R52N's. Just can't get it to let me pass traffic. It shows a -67 rssi, with low noise, but only trains at 6M and I can't get traffic to pass. 8' dish on one side, 4' on the other in case you're wondering. I suspect ACK isn't working right as the ...

infowest

JP - I agree, removing the voltage protection is not a good idea. The dc-dc converters seem to be a good idea, but I've had mixed success with some of them cutting out sooner than expected (low battery conditions), some that stop regulating if amperage gets too high (like on a power cycle), and othe...

infowest

A followup on the LED suggestion. Quoting from the Mikrotik Support guy: I'm sorry for the incorrect information on the previous e-mail. You should do the following, cut positive wire from the battery and add diode like this http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=STPS8H...

infowest

Thanks. On my RB411 that is labeled Q801. Is that correct? And by the "dot" do you mean the indentation on the top of the eeprom?

Don't know that I'm going to do this with stuff I already have in the air, but it is a useful tidbit for future reference.

infowest

Full quote: Thank you very much for your suggestion and concern. Right now we are not ready to change the behavior of the overvoltage, probably we will improve our future products for the newer boards. You can add LED for the power, it will increase the edge to +0.6V. Regards, Sergejs How would you ...

infowest

Thank you!

I got a reply from Mikrotik support about this subject and he said something I didn't quite understand - maybe you can enlighten me?

"You can add LED for the power, it will increase the edge to +0.6V."

What does this mean? Turn on all the LED's on the board?

thanks,

Randy

infowest

I'm pulling my hair out and wasting all kinds of money on voltage regulators to make sure my solar and dc-powered sites don't cause mikrotik routerboards to go into over-voltage protection when the batteries get charged over 28v. I'm begging (and asking for you to join me) Mikrotik to: 1. Upgrade th...

infowest

For point-to-point 802.11n, we'd like to start migrating some links over from 802.11a. I want to be sure I know what works now and what doesn't. 1. Nstreme - Does this work, or not at all? I'm seeing various responses here such as "not recommended," "works at short distances." 2....

infowest

Confirmed, this has been fixed in 4.0RC1.

infowest

Problem #1: Exported configs won't import. I did a /system reset-configuration then: [admin@MikroTik] > export file=exporttest [admin@MikroTik] > import exporttest.rsc Opening script file exporttest.rsc Script file loaded successfullyinvalid value for argument authentication-types interrupted [admin...

infowest

I'd much rather see polling done in hardware (fpga) so we can scale like crazy, but would TDMA be of any use in software? Someone apparently is doing that... Examples: FreeBSD (looks like it could even use GPS - why not add GPS to a routerboard?): http://siomail.ucsd.edu/pipermail/swap/2009-January/...

infowest

Can we get a confirmation from Mikrotik on a few things on 4.0b4?

1. Is nstreme polling working with N?

2. Adaptive noise immunity - that is not working, correct?

3. WDS / non-wds - what works and what doesn't? Workarounds?

Thanks!

Randy

infowest

Shutting off Adaptive Noise Immunity on both ends helped get things back up.

infowest

Be careful upgrading to 4.0b4. I lost a link doing this. Appears to be something to do with noise immunity. Others have had similar problems. When I can get the far side and shut that off, I'll post whether that fixed it. Link comes up for only a second or so then gets lost.

infowest

Thanks for all the tips on getting these working better. We've followed many of them, here are the ones that seem to have helped us so far: - No WDS - Short preamble - No Periodic calibration - Nstreme on, but CSMA not disabled - Nstreme best fit - Play with power levels until we get best results. S...

infowest

Can you clarify this? bugs: not work with WDS mode and nstreem Do you mean that nstreme doesn't work, and wds mode doesn't work, or do you mean wds doesn't work with nstreme? I am trying a wds nstreme link not getting great results - frequent disconnects. WDS without nstreme seems somewhat better bu...

infowest

All AMPDU priorities are checked and we are using the 1st and 3rd chain.

I think this is your problem.

The chains are 0,1,2,3

Are you using the FIRST and THIRD chain (0 and 2) or 1 and 3? You should probably be using 0 and 2 if you are using the two outside antenna connectors.

infowest

Best enclosures I have seen are from Defacto wireless, the "KAM" series: http://shop.defactowireless.com/s.nl?sc=10&category=3854 However, they (Defacto) are hit and miss on ship times, accuracy, etc. http://shop.defactowireless.com/core/media/media.nl?id=16860&c=300197&h=4b2f5...

infowest

Thanks for the tests. What were your HT settings?

infowest

I may be wrong, but I don't think there has been much change if any after 3.16.

We're using it everywhere now on 3.20-3.24 without problems, ptp and ptmp.

infowest

Nstreme improvement ideas: - Can Nstreme in PTMP environment be more intelligent about polling, such that "less busy" CPE's get fewer polls, thus reducing the resource usage and hopefully allowing us to get more cpe's per AP before we start hitting the nstreme limits? - Can Nstreme be buil...

infowest

Has anyone tried this with a dual-polarity dish? Any real benefit/cost doing it that way vs using two separate antennas?

Randy

infowest

Am I reading correctly that the R52N has been certified for use in the 5.4 band in the US? https://fjallfoss.fcc.gov/oetcf/tcb/reports/Tcb731GrantForm.cfm?mode=COPY&RequestTimeout=500&tcb_code=&application_id=413699&fcc_id=TV7R52N Does RouterOS beta now support DFS2 and TPC? Can we g...

infowest

Anyone tested the new 4.0 beta (the one with MIMO support) with the UBNT cards?

infowest

Don't bag on the UFL connectors too much. From what I've read, the MMCX, while more convenient / reliable / un-frustrating tend to act as stronger antennas causing more cross talk between themselves. I'm guessing the UFL connector was a concious design choice to allow better separation and less inte...

infowest

Doesn't appear to work under 3.20 - After I upload, say, 'abc.auto.rsc', a file 'abc.auto.log' is created at 0 bytes length and the script doesn't get run. Nick. I ran into this as well. What I found was that there were errors in my .auto.rsc file. Try running the file "by hand" using &qu...

infowest

Care to share any of your configs for monitoring trango ap's?

infowest

...BUMP...

Me too....

Can't do routeros upgrades because Dude doesn't recognize "l" as a matching platform.

infowest

I've got this working on a point to point link, nice and solid, no problems (433ah's). Getting ready to roll another pair with 411ah's and R5H's. Not the best test bed, but glad it is stable. Any updates on what's new in this, what we can expect performance wise, etc? Especially interested in how ma...

infowest

I'm interested in this as well. Anyone tried it?

Randy

infowest

I removed the wlan1 ports from the bridge on A and E. No change.

infowest

What interfaces and in what modes are you bridging? Isn't that typical bridged station problem? Going off the previous quote for simplicity, where A is Cedar 433AH... On "A" I am bridging the ethernet interface (eth1) and the wlan1 interface. The WDS interface comes up in the bridge dynam...

infowest

what version you are using and you can mac-telnet from where to where? if we set routers like that A-B-C-D-E you say, that you remove ethernet interface from bridge on router D, facing router C, can you still reach E from C using mac-telnet? We are using 3.16 on them. We are logged into C. We disab...

infowest

I have a situation I just can't figure out. I have 5 mikrotiks set up as bridges. 2 pairs of radios (the 433AH's) and one as an ethernet bridge (Mountain 532). (-.... = Radio link --- = Ethernet Cedar 433AH (- ..... -) North Mountain 433AH ---- Mountain 532 router / bridge --- South Mountain 433AH (...

infowest

I think he's referring to the new R5H, not the R52H

infowest

Any clues on what has changed? Fragmentation? Any config changes we need to plan on to optimize this, or is it all automagic?

thanks!

Randy

infowest

Has this upgrade only addressed the client disconnects, or is latency also improved?

infowest

From my experience, there is no need. The FCC will allow a device with the Ubiquiti XR3b to be registered and legal, no further certification required.

Randy

infowest

We are running a link with 333 boards and XR3's in the US licensed 3.65 band. Mikrotik "sees" the channels on the card as 5.8 channels, then you downshift those to the correct 3.65 frequencies. There are basically 3 available channels: ChannelA 5765MHz --> 3658MHz 5/10MHz ChannelB 5770MHz ...

infowest

pixitha - I can't sem to private message you. Interested in working with you on this and other boards / frequencies. Please email me at r c o s b y *AT* i n f o w e s t . c o m

infowest

Where are we on this? I'd be more than happy to pitch in.

As for the boards that should be certified, are you still looking at the 333, or would the 433 be more appropriate?

Randy

infowest

Which Routerboards now support input voltage monitoring under /system/health?

I have seen reports that the 333 does. How about the new 450, or is this a powerPC-only option?

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