Is there any chance you guys could give us some help on NV2 for real world PTMP applications? It seems like it is working well for PTP links but I know there are a lot of people who can’t get it to work for PTMP applications, myself included. If you guys have tested this in a real world outdoor environment or know of someone who is successfully using it let us know the setup, board, wireless card, settings etc.
It seems like a lot of people trying to run it on XR2 cards are having no success with it, is there a compatibility issue with XR2’s? I have done my part and sent in spouts from non working AP’s with the NV2 package in both NV2 mode and 802.11 mode so how about tossing us a bone and helping us make your equipment/OS work to its potential.
If you have any real issues with NV2 on point to multipoint links. Please, contact support (support@mikrotik.com), we will need support output files from your router and optionally access to your routers.
I have been sending spouts to support and I am willing to give you access to these AP’s but it needs to be real time as I am testing on a few small production AP’s in the wee hours of the morning here in the states. This is normal business hours for you guys but I would need someway to schedule this with you because I can’t leave the NV2 package installed on an AP because it isn’t stable enough to run without having issues and causing service problems for our customers. I am willing to do what I can to help with this but there needs to be a better way for me to interface with your support on this rather than posting to forums or sending you an email and waiting for you to get back with me. The email support is not real time enough for me to leave NV2 installed and wait for you to log into the AP.
Here are a few screen shots comparing signal levels of V4.9 toV4.16 with the NV2 package installed. There is a huge difference in signal levels between the two, these are the same clients with no changes other than the OS version and NV2 package on the AP and clients.
If you go down the list the difference in RX signal to the AP per mac while running NV2 package is as follows
Average signal loss between V4.9 and V4.16 with NV2 package is 15.52db. That is HUGE!! Is there any explanation for this? Were signal levels not accurate in the old wireless package or are they not accurate in the new package or is there just something not right in the new package?
Also the noise floor is shown @-97 in V4.9 and -80 with 4.16 NV2 package.
The first image is with V4.9 installed on the AP running 802.11 10mhz
The second image is with V4.16 installed running the NV2 package in 802.11 mode 10mhz
Also with the NV2 package installed I have to leave the Data rates set to default otherwise the clients won’t register. I do have country code set on all units so I am not sure what is up with that.
I believe Uldis is going to remote log into this AP to take a look at it.
We reported the same signal change issue to MT when 4.13 came out and got a response that nothing at all had changed in wireless and it must have been a bird sitting on the antenna when we ran 4.13
Well I figured out what the deal is with the Signal levels and noise floor. If you change the noise floor setting in the Advanced wireless tab it directly effects the clients signal strength to the AP. Also whatever you have the noise floor set to in the Advanced tab is what shows up for the actual noise floor under the status tab and also if you do a frequency usage survey it shows the same number there.
The clients on this AP are currently “locked up” so they are not passing any data but are still associated with the AP. Hopefully you guys will be able to log into it and check it out. If you cant log into it for some reason please call me. My contact numbers are in the latest email I sent regarding the ticket.
Well from my testing if you have very good connections 4.16 NV2 works pretty well but it seems more susceptible to noise than either 802.11 or nstreme. On the AP’s I have tested it on if a client doesn’t have a SNR of 30db or better they have issues with timing related disconnects from the AP. For example the noise floor on one of the latest AP’s I have tested it on is -97 any clients with signal strengths of worse than -67 have disconnect issues and clients with signals of worse than -77 won’t hardly pass traffic. These same clients work fine with 802.11 and Nstreme so it is for sure something to do with NV2. I hope that MT can make some progress with NV2 because I expected it “TDMA” to do better with noise than either 802.11 or Nstreme. I think there may be some changes to NV2 in the latest RC that may help but I haven’t tested it out.
As far as general issues I was having with the NV2 wireless package I think most if it boils down to the fact that the new wireless package has many changes in how the drivers interact with the wireless interface and when migrating from the standard package to the new package settings just don’t seem compatible between the versions. Things that you used to do to get the old package to run well don’t necessarily work with the NV2 package and in some cases flat won’t work. Three of the biggest culprits IMO are ANI, Noise floor threshold and Data rates. If you are upgrading from the old package to the new package and have a noise floor threshold set from what I have seen you will have problems with it.
Well I think I jinxed myself, about 10 min after I typed this one of the AP’s that I had 4.16 NV2 package running in 802.11 mode when to crap on me. I played with it a bit but ended up rolling it back to the standard wireless package and it was normal again.
With 1 client and 1 ap I get kernel panic with 5.0rc10. This happens during bandwidth test within 10 seconds of it. I get kernel panic. Maybe bad wireless card? I sent supout.rif to mikrotik. From dallasweitzel@gmail.com
