MikroTik

lucky79

It's not that I complain on wireless capabilities of mikrotik gear. It's kind of observation I made. About year ago after I got dissapointed by 802.11ac support from mikrotik I decided to use other producer equipment. The other one that gave me so much enjoyment to work with. But lately I was force...

lucky79

You can limit max number of stations which can connect to an AP, together with limiting the minimum signal should be enough to provide reasonable WiFi service. Keep in mind that you want to limit signal from client to AP, as per your post I would understand that you want to limit the signal strength...

lucky79

another issue with ac equipment

no 10mhz channel
no spectrum analizer
no tx power control

tx power works fine, its just not showing on the current tx power tab.

lucky79

Here is your answer: https://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/2.4_GHz_Wi-Fi_channels_(802.11b,g_WLAN).svg/2000px-2.4_GHz_Wi-Fi_channels_(802.11b,g_WLAN).svg.png You can't install 12 APs on 2.4GHz in same place as it was already mentioned, there are only 3 non overlapping channels. I...

lucky79

Is it just Omni's you use for AP's and not sectors? Of course not only Omni's, these are AP's in center of villages where number of CPEs is not high enough to invest in sectors for covering 360 degrees. As number of clients grows, we switch slowly from Omnis to sectors. In bigger towns its impossib...

lucky79

Don't understand the need for a 24dBi CPE dish to travel just 3KMs, also the low client number on the AP's is helping you. 22-25dB CPE is a need for that distance to be able to sell 30Mb plans, especially when fresnel is not 100% clear. Add some noise and you would understand. There are people in t...

lucky79

@ lucky79 What is min and max distance for the CPE's to the AP? min 80m, max 500m I think the conditions on this AP are very close to ideal, even there is many other collocated APs on neighboring channels (in my control) and some competitors around, there is very little interference. So everyone sh...

lucky79

lucky79, could you please post an export from your AP? Just to see how did you set it. Did you change queue configuration? How did you test 70Mbps TCP? Thank you! Nothing special, just a basic config, bridge mode, did not change any queue configuration. BW test is done between Mikrotik x86 router a...

lucky79

I dont get it. Prod environment, 912UAG-5HPnD with 12dB omni, 16 SXT clients = no problem to get >70Mbps TCP single connection one way throughput using NV2 and 20MHz channel. Latency with full load around 15ms, 4ms avg with load <50Mbps. ROS 6.19 on the AP, 6.27 on clients

lucky79

Interesting, I dont have any issues with PTMP with NV2.. but staying away from OmniTik - recently replaced it with UBNT 13dB omni antenna and 711GA, so far no issue and better than OmniTik. It was 3 years old and I am guessing that the antennas or something else started failing... after replacement,...

lucky79

Thanks your for your quick response , your answer is make sense but actually i have 18 units of RB951G-2Hnd mikrotik brand , how to fix to work with 5GHz network ( it's not for very far away outdoor Point to Point connection ) any other way like putting additional wireless card on it ? There is no ...

lucky79

Probably an RBSXT5nDr2.. You need to turn AirMax off on the Rocket as it will not work with MikroTik client. However its better to use same brand for AP and client as both UBNT and MikroTik uses their proprietary TDMA protocol and if you combine, those protocols must be disabled. For outdoor use its...

lucky79

Hi Chechito. The tx power is the default

Oh my god, 60dB EIRP = 1kW

Well maybe not on 80MHz channel... anyway awesome link! Where are you located?

lucky79

I guess that 144Mbps rate is 2 chains/20MHz. It might be this problem, please read http://www.smallnetbuilder.com/wireless/wireless-features/31743-bye-bye-40-mhz-mode-in-24-ghz-part-1 If you have other 2,4GHz networks in range, you most probably wont be able to use 40Mhz... Using wireless-fp package...

lucky79

I am using MikroTik hotspot and all mobile phones/tables I have tried automatically open a portal login page as soon as they realize they cant access the internet but DNS is resolving. You have to use real domain suffix for the DNS name of your hostpot, something like hotspot.domain.com and its work...

lucky79

Completely agree. But instead of going the UBNT way we're installing Mimosas. And guess what. 160MBit is a sticker ;-)). Yes MT has to do a lot of work for nv2 and .ac to keep us from installing Mimosas PTMP solution once it arrives. We've a lot of MT Devices out there and like them. But we have to...

lucky79

With a PHY-Rate of 2x86.7 up to 140Mbps is doable under ideal conditions. Dont expect to see the numbers of the fan-boys on UBNT Forum. All shines there even when they have to restart between tests. MT does not design custom wireless chips. Do a lab test with 2 sxt acs. You will see better performa...

lucky79

Mimosa uses a Quantenna chipset. The UBNT AC Lite is normal .ac. These AF5X are custom designed chips (no .ac). Yes MT has to do some work for .ac. Esp. nv2 needs adaption. The problem might be the cpus on the MT-.ac boards are not much faster than on .n boards. SW-Based TDMA needs some CPU-Power. ...

lucky79

We are talkin 802.11ac. Mimosa is based on a standard .ac chipset. UBNT uses the same Atheros Chipsets MT does. So results should be comparable. Yep, they do. But for example UBNT uses also a TDMA ASIC, plus the filtering technology... Dont know about mimosa but its definitely not plain 802.11. Its...

lucky79

You find good numbers doing some math with the link planner from mimosa. Their MAC-Efficiency differs with framing size 2/4/8ms. So you've a tradeoff latency vs. speed. 802.11ac is not more sensitive to interference with same modulations. But to get higher modulations you need a cleaner channel of ...

lucky79

Take the percentage increase of physical layer throughput. You see the same increase in real performance if your signal is strong enough. MT has to do some work to make that happen with nv2. With plain 802.11 you see this gain. Take a look here. http://www.winncom.com/images/stories/GoNet_WP_Things...

lucky79

Physical layer speed.

Well... I guess that winet asked if its worth upgrading. Physical layer speed or theoretical throughput is useless here. Have you got any real throughput experience?

lucky79

http://en.wikipedia.org/wiki/IEEE_802.1 ... _and_speed
http://en.wikipedia.org/wiki/IEEE_802.1 ... Data_rates

Theoretical speed....

lucky79

I have upgraded one 320m link with R11e-5HacD running on 40MHz channel, using x86 dual core Atom boards and Jirous PAR24 Extrem MIMO. With previous R52n-M I was getting slightly over 200Mbps... This link had 100% CCQ but over a time the performance dropped to 150Mbps until I reconnected and then wen...

lucky79

Maybe unsupported motherboard or some kind of HW conflict? I have never ever had any issues with any x86 boards running mikrotik.. Even with R11e-HacD.. Currently my AC link runs on Intel Atom Boards and is rock solid.. its on 6.22 though but I bet it would be same on 6.27 Can you provide more detai...

lucky79

On the AP try use wireless protocol NV2 and if your clients are AC only, use band=5GHz-only-AC. Note that if you use NV2 the security profile is not working and you need to use the NV2 security. Ok I didn't tried to use NV2 because in my opinion it makes the AP inaccessible for non-NV2-devices?! :s...

lucky79

On the AP try use wireless protocol NV2 and if your clients are AC only, use band=5GHz-only-AC.
Note that if you use NV2 the security profile is not working and you need to use the NV2 security.

How are the signals? please provide registration table print.. maybe this AC one client runs too hot?

lucky79

This has been discussed several times here on the forum, response from MT guys was that this will be implemented. Same as with the spectral scan, when it will be done thats still a question :) But from my point its not something which would block you from deploying and successfully running those de...

lucky79

This is not implemented since introduction of AC products so completely normal for now. It should be implemented in the future as far as I know. That's a nice statement; "not implemented since..... completely normal for now"...? That's something like saying everything they 'forget' to tra...

lucky79

This is not implemented since introduction of AC products so completely normal for now. It should be implemented in the future as far as I know.

lucky79

SET 802.11ac (plain protocol) nor NV2 nor nstreme works with 802.11ac NV2 works fine on my AC links... so this is not true, 802.11 has too high latency under load I would definitely try 20MHz as finding clear spectrum for 80MHz is almost impossible. If 20MHz works fine, try increasing to 40MHz and ...

lucky79

I had the same problem which started with IOS 8 upgrade. The problem was my hotspot DNS name hotspot.something.local.... Just renamed to some of the existing domains (*.com, *.org etc.) in my case hotspot.something.cz and everything started to work. With IOS 7 and the old setup the login page was no...

lucky79

Thanks for your reply unfortunately I cant as I need support also for R11e-HPacD so wireless-fp package which is not available on v5.xx :( Its not a major problem for me as I have no issue apart the BW test... this router can pass 200Mbps over 40MHz ac link but it used to be my primary BW test point...

lucky79

Hi all, I am having strange problem with BW test low performance and high TX drops on vlan interface when BW test is running? This is an x86 board with 2x82574L NICs and apart the BW test it is working fine, just a few TX drops on vlan interface and some RX drops on physical interface, nothing major...

lucky79

-65 is not a reliable link. Is at the limit for a good client connection. A reliable link is at ~ -50...-55 So if you have noise floor for example -105 (which is pretty noisy) then you have SNR 40dB. This is a reliable link for full modulation on 802.11n... maybe not for AC and 256QAM but dont say ...

lucky79

-65 is not a reliable link. Is at the limit for a good client connection. A reliable link is at ~ -50...-55 So if you have noise floor for example -105 (which is pretty noisy) then you have SNR 40dB. This is a reliable link for full modulation on 802.11n... maybe not for AC and 256QAM but dont say ...

lucky79

i think mikrotik groove it's good for your project

I dont think so, Groove is SISO, not MIMO and doesnt make any sense to use it as you get half of the todays available bandwith on highly occupied spectrum.

lucky79

Your signal is not the issue. Its the protocol you use; If you use 802.11ac without ubnt's airmax or mikrotik's NV2 you are using plain 802.11ac that is still vulnerable for interferences from other 802.115Ghz frequencies. It degrades the link a lot. Using airmax one one and and NV2 on the other is...

lucky79

Nanobridge is only 2x2 and I havent seen anyone using 3x3 succesfully for PTP links. I have only seen sector or panel antennas for 3x3, no dish... so for that distance, use 2x2.. Airlink calculator doesnt count the allowed TX power in your country, it takes what you set up. Not exactly sure what are...

lucky79

Hi, I have used UBNT Rocket AC with NetMetal AC. Are you saying you have RocketAC on one side of the link and Netmetal on the other? i think he said : CCR ______ NetMetal5+RocketAC Dish <........12KM ........>Rocket AC Dish+Netmetal __________ CCR Ahh, Rocket AC dish I see now :D then its ok

lucky79

In general using a dual polarity dish antenna with around 30dB gain and Netmetal would be the best way. You have any dish recommendations? The NetMetals were at the top of my list, but I'd rather not use a huge dish if possible. Anything similar in size to the NanoBridge's from Ubiquiti? And also s...

lucky79

Yes try to lover signals to ~-45dbm , as suggested. using all rates fixed it should be optimal signal strength for best AC wireless performance also nv2 is working grate on some links on some it doesn't it depends one environment. -45dBm still seems too high to me. It also depends how high the nois...

lucky79

for that distance you definitely need to stay away from SXT, Sextant etc and use 5GHz for sure. The exact equipment of course depends on your environment, interference, required throughput, available frequencies in your country and so on. In general using a dual polarity dish antenna with around 30d...

lucky79

The problem is I cannot change tx power. The only option it accept is default & all rate fixed. Both are not working well.

All rates fixed is working fine with the AC gear, it just doesnt show in the current tx power...

Set it to 3dB as suggested by ibm

lucky79

Hi,

I have used UBNT Rocket AC with NetMetal AC.

Are you saying you have RocketAC on one side of the link and Netmetal on the other?

lucky79

Your signal is too high, lower the power to get -50. I have AC link running on 40MHz channel NV2 with SNR 55dB and is working very well. Link can be fully utilized with 1 TCP connection, max aggregate throughput around 200Mb, latency with full load is 2-3ms, CCQ between 90-99%. This is with x86 dua...

lucky79

Use NV2 and try what ever interface queue works best for you.

lucky79

Your signal is too high, lower the power to get -50. I have AC link running on 40MHz channel NV2 with SNR 55dB and is working very well. Link can be fully utilized with 1 TCP connection, max aggregate throughput around 200Mb, latency with full load is 2-3ms, CCQ between 90-99%. This is with x86 dual...

lucky79

Is this HW or SW limitation? Why Ubi support it then?

lucky79

Just got to same problem with 711GA installed in the Jirous antenna plastic box - so not only SXT problem. The contacts were exactly looking same as the picture of SXT... Actually it happened when I tried to upgrade the board but during the copy it freezed in the middle and router rebooted - never c...

lucky79

Did you also change the VLAN IDs according to the vlanXX interfaces? VLAN IDs must match on both devices, eg. vlan10 to have VLAN ID 10 on both devices. If you dont have internet access when connected to CRS, make sure you have correct NAT, DHCP gateway etc. Could you post your config from both devi...

lucky79

Of course you dont need 3 physical cables, thats why we have VLANs. Create vlan10, vlan11, vlan12 on ether2 of CRS (set vlan IDs to 10,11,12). Also create bridge10, bridge11 and bridge12 bridges. Add vlan10 and your virtual AP1 to bridge10 and continue like this for the other 2. You need to switch t...

lucky79

Use VLANs to make separate bridges between the CRS and 2011.

Create Bridges for each virtual AP, add the virtual AP interface and vlan interface to each bridge and you are done

lucky79

..(cut) .. using the TDMA.. .. priority .. can be set at the client radio and this should help to prevent the bad client to eat all the airtime of the AP... Surely priority should be implemented because it's useful on many situations (e.g. pro users vs best effort ones) ..and I'm sure you are right...

lucky79

But how would the DHCP server recognize if you are paid or trial user when assigning the IP address? I guess this will not work, you define the address pool in the Servers tab, not profile. And its impossible to have 2 hotspot servers working independetly on one interface.

lucky79

Do you have clear LOS? did you test 802.11 wireless protocol? NV2 seems to be increasing CCQ with the amount of traffic going through the link. Also try changing from AC to only-N, the signal is maybe too high, hows the noisefloor? Try narrower channels... For me it looks like interference. Do you h...

lucky79

I have working AC link where I can easily get 100Mbps with a single TCP connection using NV2. Try changing the interface queues and find which one works best for your setup (try queue types, sfq, pfifo, pcq...). Note that if you change queue type (kind), you need to change interface queue or reboot ...

lucky79

Well, when you are building the network you need to make sure your clients are properly installed, aimed and that they all have similar signal strength. Do not allow such a bad client to connect to the AP, low CCQ and low signal is the values you are looking for. I guess at this moment there is no w...

lucky79

The bad client seems to have serious issues with interference and also the 11dB difference between CH0 and CH1 is suspicious. Is this SXT or 911? Might be too far for the antenna used, you may want to use better antenna to keep the signal similar to other clients. This client uses all airtime when p...

lucky79

Hello, there is no way you can differentiate trial and paid users within one physical network. You need to create a separate virtual AP or use different vlan for trial users, e.g. if you use the same device for wireless AP and hotspot, create a new virtual AP SSID called for example "your-hotsp...

lucky79

I'm still unable to connect to the Internet. Here is the configuration of my RB (using "export"): # jan/01/2002 01:01:10 by RouterOS 6.22 # software id = XXXX-XXXX # /interface bridge add name=Bridge /interface wireless set [ find default-name=wlan2 ] band=2ghz-b/g disabled=no frequency=2...

lucky79

Each chain works independently almost like separate radio. Otherwise mimo would not multiply data rate. Different polarisation is almost like using other frequency. Therefore 2x2 mimo dual polarisation devices could transfer twice much data per second using one frequency comparing to single chain d...

lucky79

I dont say its not possible but whats the advantage of having separate chains for TX/RX using one radio and frequency? And of course its not going to be real full duplex, this is by using different frequencies for TX and RX. I would say its exactly same like to use both chains for 2 way traffic = no...

lucky79

I thought the problem might be in the mac-mode but was not exactly sure

I am glad its working for you now

lucky79

Dual chain radio is capable to provide also full duplex as one chain can be rx only and second tx only. So again : why to use four devices (actually six as something on both sides has to decide about traffic routing) instead two? There must be other reason than full duplex capability. Seriously? Yo...

lucky79

It's possible but what's behind? What do you want to achieve?

Full Duplex link as mentioned already

lucky79

I dont see any reason why it wouldnt be possible if you have enough free spectrum, use dishes with side shielding and radome like Jirous antennas for example. Put them at least 1m far, both links should be working well then. Then you need to use something (CCR or other powerful RB) which will make t...

lucky79

I thought he might need full duplex link with 4x MIMO antennas = 2 each side of the link therefore 4 metals ;) Or do you mean he could add a mPCIe card and use just one Metal for 2 antennas each side? Or use 2 Metals for each polarization connected to one MIMO antenna? You can understand that couple...

lucky79

maybe he mean 2x dual polarity antenna on each side and therefore 4x metals

lucky79

You have two wireless interfaces on your RB, so no need to do a repeater. In case Linksys is in the bridge mode and you have no access to it, then you cant use WDS and creating a bridge on the RB as it will most probably not work. I would do it this way: Set wlan1 of your RB to station mode and conn...

lucky79

I have had this configured some time ago without the certificate verification and all of the setting was on the radius server and client. Mikrotik was just passing the authentication requests to the radius server. The security profile setting export is below and it was working fine against linux fre...

lucky79

The previous SXT N based should handle 30 clients with reliable speed. My NV2 AP (RB711) mounted on UB** omni runs great with max throughput around 60-70Mbps TCP, currently handling about 16 clients, its almost same radio s the SXT so it should be working fine, definitely an improvement from CM9. H...

lucky79

Upgrade to 6.23rc7 as advised by support made thing even worse. Flash access is taking whole CPU time, link disconnecting etc. Downgrade to 6.19 - FIXED! Btest pushing 200Mbps to a neighbor connected to same switch without affecting the CCQ... My GOD... UPDATE: Just one thing not right with 6.19 - 2...

lucky79

Thats simple, set wlan1 of RB433 to Station mode or better Station Bridge, wlan2 to AP Bridge mode and set also SSIDs (wlan1 SSID must match with the Linksys AP connected and wlan2 SSID you can choose whatever you want your network to be named). Note that in 2,4GHz only 3 channels from available 13 ...

lucky79

not mostly in v6, bug is in v6 but not as u describe my CCQ drops 20-30% less maybe its my equipment better cpu Why SNTP can case high cpu usage hm? (yes it is more random in v6 I never got answer) Not only v6, I have had one 711G with 5.26 where SNMP suddenly maxed out the CPU and only restart fix...

lucky79

for the 911 I have used the standard 24V 0,8A (Cable is outdoor shielded carrier class Ubi Level 2 - 12m), when swapped the NetMetal used the original 24V 1,2A and installed new cable, this time its Ubi outdoor Level 1. I dont think it could be a power issue... Tested more and when I switch to NV2 f...

lucky79

I know it is, normally not doing this, but I am trying to diagnose a problem I am seeing now - low tcp performance between devices connected to same Cisco switch... getting around 30Mbps with single TCP connection even I am sure there is no problem to max out the 100Mbps with devices using the 400MH...

lucky79

Just installed SXTac SA and can say I am impressed so far. Have just one older SXT N client 600m away - moved from another omni AP, links at 144M TX/RX rates and TCP throughput is over 90Mbps on 20MHz channel using NV2

lucky79

I am seeing weird issue with one of my RB911G-5HPnD. When I run Bandwith test from the device to another device connected via LAN, immediately after Btest starts the Rx CCQ drops from 100% to 5%. As soon as the Btest is stopped, CCQ returns to 100%. The Tx bandwith is very low compared to another 91...

lucky79

I agree with you but at least the CCQ shows that station is not ok if the value is low. 50% is quite bad for reasonable modulation I would say. As far as I can see the low CCQ without any traffic is just at the time the client connects to the AP, when it start to pass traffic and then traffic goes t...

lucky79

The TX/RX CCQ is the value you are looking for, just sort and see the worst CCQ - that client is most probably slowing down your AP.

lucky79

I am using nstreme succesfully on 2x2 N links (did not test this config on AC hardware yet) so you can try the settings described in the thread below: http://forum.mikrotik.com/viewtopic.php?f=7&t=83183 this should solve your too many poll timeouts problem. However dense modulation introduced wi...

lucky79

I don't argue with you about wireless debug messages. But i a few months ago i tried to optimize wireless networks and played with protocols. With nstreme i got extensive data loss, the same was with plain 802.11N. This wasnt happened with nv2. It could be that in the p2mp mode tcp throughput is re...

lucky79

I changed to nv2 and 802.11 and the speed is lower, and either is CCQ. :( I switched frequencies during the night and I found a good 80MHz channel in AC. Speed is about 220Mbps both on upload and download, which is very good, using nstreme. Using nv2 or 802.11 I can reach only 95Mbps using nv2 and ...

lucky79

Thanks for all replies! But I would know if someone had same problem with Routerboards that supports AC and Nstreme only in frequency between 5500 - 5700 MHz. Thanks :) Well I dont see any reason why it would not work with nstreme on specific frequency, maybe there is too much noise? What is the CC...

lucky79

I have it laying on my table, did not have a chance to install it so far... you can get the antenna diagram from here: http://i.mt.lv/routerboard/files/SXTac-140718123939.pdf Anyway I have experience from normal SXT AC running as AP doing PtP link.. was not happy about it, when I've replaced it with...

lucky79

Yea, I would do so too of course... but until we have budget for it I need to live with MT

lucky79

Well, I have one AC link using NV2 and got 140Mbps throughput with 1 TCP connection.... no problem to achieve over 100Mbps on speedtest.net.. But its just one NV2 link behing fiber and 24GHz radio. Ok you are right, I have just switched one link in between NV2 (3 in row) where I was getting only abo...

lucky79

Thats great news, thanks very much Normis

lucky79

Just use NV2, nstreme doesnt work well on N/AC interfaces. You will have slightly higher latency but more performance and more stability with high load on the link using NV2.

Why do you want nstreme btw?

lucky79

Thanks very much Normis

lucky79

Hmm, thats not good news

But as far as I know the well known competitor is saying their AC will have the spectral scan feature so its a bit surprise to me that its not supported by the chipset. Howcome atheros could develop a chipset without this...

lucky79

I guess only the kernel failures have been fixed with 6.21, no news for spectral scan though..

What's new in 6.21 (2014-Oct-30 12:34):
*) wireless - fixed scanning tool crash for 802.11ac interfaces
*) wireless - fixed Nv2 kernel panic on 802.11ac interfaces

lucky79

you need to download separate wireless-fp package (aka CAPsMAN) and replace existing wireless.npk (or disable and enable wireless-fp)

lucky79

Still cannot go lower than 6dB TX Power on RB922UAGS-5HPacD so have to stay on 6.19 where it is possible to go to 0. Will you guys fix it? Or nobody else having the problem? In older RouterOS version the the 6db tx-power offset was not taken into the account. This problem is now fixed in latest Rou...

lucky79

20Mhz dual chain channel should be enough to get 60Mbps throughput however it seems you are using either 2GHz-only-G or your client is not 802.11n dual chain. Make sure your client has 802.11n wifi card and 2GHz N is enabled on the AP. If the client is single chain only you can try to increase chann...

lucky79

Well sorry but I have to say wifi is relevant and it does matter the settings. Some time ago it wasnt possible to create a transparent bridge without using WDS as it would behave exactly like you are describing. Now there is this station bridge mode to make transparent bridge on Mikrotik. For me it ...

lucky79

Still cannot go lower than 6dB TX Power on RB922UAGS-5HPacD so have to stay on 6.19 where it is possible to go to 0. Will you guys fix it? Or nobody else having the problem?

lucky79

Did you enable both chains? What are the TX/RX rates if you look into the registration table? Is the spectrum free at the location? Did you try to use different channels?

lucky79

I would definitely look at the asymmetric signal readings, why there is 13dB difference between RX and TX signal? Is it single chain or dual chain? what wireless protocol do you use?

lucky79

why WDS? Just enable bridge mode (enabled by default btw) in wireless tab on the AP (bridge) and on the station use station bridge

lucky79

well, if you are close enough it might work but I would not do that, just go and buy a proper 5GHz antenna and also replace the pigtail with 5GHz certified cable.
Of course also depends if Ubiquiti AP has AirMax enabled or not, if yes then you cannot connect even with 5GHz antenna.

lucky79

you need to provide more information, are the LEDs on when you cannot reach the device? There were some issues with kernel crashes and device reboots. You can try netinstall procedure to reinstall the ROS

lucky79

Hello,

current TX power reading is not yet finished for AC radios. But this doesnt mean its not working well

lucky79

Hi, its an interesting topic, I like the nstreme low latency very much but wasnt able to successfully use it on 802.11n dual chain links, even some 40MHz single chains... I have tried your setup on a 400m dual chain 40MHz link which is 100% CCQ and pushing 200Mbps with NV2 running ROS 6.15 and stand...

lucky79

yep, just seen it, will be testing over the weekend

lucky79

Hey guys, can someone from Mikrotik support give us an estimation when we can expect the not yet finished features like current tx power readings, spectral scan, frequency scan crashes, channel usage crashes etc. to be finished so we can use those devices like we were used to with the N chipsets? An...

lucky79

They could have included the change in the changelog at least... No single word about it even you say its been fixed...

lucky79

[admin@MikroTik] > export # oct/23/2014 14:04:15 by RouterOS 6.15 # software id = XXXX-XXXX # /interface wireless set [ find default-name=wlan1 ] adaptive-noise-immunity=ap-and-client-mode \ band=5ghz-onlyn channel-width=20/40mhz-ht-above country="czech republic" \ disabled=no distance=1 f...

lucky79

For test, can you try ROS 6.7? Hi ! Are use only 2x2 or 1x1 chain ? My test resolution 1x1 work fine nstream on 64QAM modulation , but change the settings to dual chain random disconnection and slow speed ! After 6.7 we have no problem with 2x2 nstream. This is P2P link. 2x2, hw retries 15, 2,3km d...

lucky79

Did you set SSID and security? when you make a Freq. Scan, do you see the network you want to connect to?

lucky79

I apply QoS just in L3 In another router (RB1100) I apply QoS and PCQ, limiting total bandwidth the AP can manage (I usually set it to 20mb/down and 5mb/up Regards So your AP can only handle 25Mb? Dont you use 802.11n MIMO and NV2? Mine can do 70Mb without any problem, not with 70 clients of course...

lucky79

I had one link mistakenly reversed polarization on each side (one side was CH0 V / CH1 H and the other side CH0 H / CH1 V) and there was no difference in the link at all, although I would guess it should be same on both sides of the link.

lucky79

In the wifi adapter (Intel centrino N-6205) settings on my laptop there are advance settings for channel width but only for 802.11 n . There is no mention for channel width for b/g?? From what I can see on the net 40Mhz is only for n? I am confused. Hmm I have to say I am not exactly sure about thi...

lucky79

I have seen similar behaviour long time ago when using routerboards with more than 1 wireless card, therefore started to build x86 with 2 or 3 cards max. Usually the root cause of this was shared IRQ but that was before NV2 was introduced. Could you check if your cards uses different IRQ? Did you tr...

lucky79

Inox thank you on your suggestion! lucky79 thank you also very much on your suggestions! I tried to switch to 40MHz turbo in RB433 but then none of my laptops (windows 7, win XP) nor mobile phones (symbian, android) do not see my wifi network? Youre welcome This is weird, sometimes the wireless car...

lucky79

I have RB433 with R52 802.11 b/g wifi card for my home LAN. My ISP gives me new high speed broadband for my home. Till now I had 4/0,5 Mbps adsl link, and now I have 100/20 Mbps. Till now ma R52 was enough but with this new 100/20 Mbps speed my R52 now is a bottleneck for my wifi laptops that have ...

lucky79

Noise floor is a measurement of the ambient RF noise as seen by your wifi interface. It is not configurable, it is a read only value. It is however used in conjunction with signal strength to calculate the SNR value. Hi Skillful, sorry but I dont agree, with N cards you could set the noise floor ma...

lucky79

we can't fix problems in existing old version :) please upgrade back to v6.20 where you did not have these issues Hi Normis, nobody want you to fix existing old version :D the thing is many people including me do see better wireless (NV2) performance in 5.26 than 6.20 as Tonymobile mentioned one of...

lucky79

Noise floor is a measurement of the ambient RF noise as seen by your wifi interface. It is not configurable, it is a read only value. It is however used in conjunction with signal strength to calculate the SNR value. Hi Skillful, sorry but I dont agree, with N cards you could set the noise floor ma...

lucky79

Ok, my device is 433AH and 1 Wlan module. I ha see in tool/profile, ipsec module from 70 to 90% !!!! :shock: I'm sure that if upgrade to the latest version, fixes the problem but because it happens ??? I'm downgradind some of my devices because I think that the TDMA (NV2) is more stable in older ve...

lucky79

hello friends I bought a NetMetal5 and now work on A/N mode , on Current TX Power tab , all db's are on zero . is this a normal ? TX power mode is on Default . Thanks Hello ViREnG, yes this is normal, TX power readings are not done yet on the AC radios according to uldis who already answered in 6.2...

lucky79

RB922UAGS-5HPacD hanged after upgrade, needed power cycle to restore access. minimum tx-power 6dBm, seriously guys? Current Tx power still shows 0dBm. Automatic Tx power based on antenna gain still not working. No manual noise floor threshold... No spectral scan... I guess I am holding the AC produ...

lucky79

RB922UAGS-5HPacD hanged after upgrade, needed power cycle to restore access. minimum tx-power 6dBm, seriously guys? Current Tx power still shows 0dBm. Automatic Tx power based on antenna gain still not working. No manual noise floor threshold... No spectral scan... I guess I am holding the AC produc...

lucky79

Actually after doing some more tests it seems that NV2 protocol is lowering the CCQ and not noise as I thought.... if I use 802.11 I can get 99-100% CCQ but when switch to NV2 it drops to 60-90%... Throughput seems to be a bit better with 802.11 but the latency is too high with some load on the link...

lucky79

Hello guys, anyone noticed the noise floor threshold disappeared from the AC products? I have started using SXTAC and Netmetal 5, both not having this advanced option... used this quite a lot in noisy environments mostly for short links where it helped a lot achieving 99% CCQ. When upgraded these hi...

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