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normis
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Wireless disconnection messages explained!

Tue Feb 06, 2007 9:22 am

http://wiki.mikrotik.com/wiki/Wireless_Debug_Logs

It's a work in progress, so suggestions and corrections are welcome.
 
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sidney
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Tue Feb 06, 2007 9:41 am

Thats that should help us pin point most of our problems

Sidney 8)
 
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janisk
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Tue Feb 06, 2007 11:25 am

if you have any better explanation then you can add it there, but you hvae to be 100% sure that it is so.
 
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HarvSki
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Tue Feb 06, 2007 5:07 pm

Thanks Normis this is very helpful
 
GotNet
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Tue Feb 06, 2007 7:21 pm

Thank you!!
 
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Tue Feb 06, 2007 11:03 pm

Finaly!!! Thanks!!! :D
 
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BulleriNET
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Tue Feb 06, 2007 11:54 pm

Very Nice Thank You
 
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Chofex
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Wed Feb 07, 2007 5:41 am

Perfect! :D
I've been needing this for months!
 
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ivaring
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Thu Feb 08, 2007 5:53 pm

Hi all.
I tried this functionallity and it works really well.
Is this then active by default?, I mean, every log is sent to memory after any event (that I choose).

Thanks.
 
gregdhayes
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Thu Mar 29, 2007 11:17 pm

I'm getting the MIC Failures on several of my clients. Interference isn't an issue on one of them and their signal is -50, ccq is around 99.

Client is conecting to a RB112/CM9 using a laptop. Two other customers are using Tranzeo CPE 90's.

They connect fine....then out of the blue I see those MIC failures.

Is there another explanation for the cause of these? Or is it just a compatibility issue between the cpe's and ap and using TKIP.

Thanks
 
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Fri Mar 30, 2007 12:44 pm

Advice for "no beacons" if connecting to a Cisco AP, you need to increase the beacon rate on the Cisco radio config. Default is 100 and all my routerOS clients constantly dropped with this error, changing to 50 and it's rock solid.
 
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Re: Wireless disconnection messages explained!

Tue Apr 03, 2007 7:51 am

http://wiki.mikrotik.com/wiki/Wireless_Debug_Logs

It's a work in progress, so suggestions and corrections are welcome.
Congratulations! This information is very helpful.

kind regards/ldv
 
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Thu Apr 12, 2007 11:01 am

Thank you! :lol:
 
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Re: Wireless disconnection messages explained!

Sat May 26, 2007 8:43 pm

Talking about disconnection.

I suffered mainly two problems.
a) trees disturbing registration, so, moving antennas was the solution
b) excesive power on antennas, so, N/S ratio was too poor

I solved this problem, today not disconnection messages since 3 months ago!

Thanks.
 
denni
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Re: Wireless disconnection messages explained!

Thu May 31, 2007 7:52 am

thanks guy good work .. it help us !!
 
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mkbatur
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Re: Wireless disconnection messages explained!

Mon Jun 04, 2007 6:10 pm

good working.
 
channingzou
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Re: Wireless disconnection messages explained!

Wed Aug 01, 2007 6:27 am

[admin@MikroTik] > /system logging
[admin@MikroTik] system logging> add topics=wireless,debug action=memory
hi, can I log to disk?
system logging> add topics=wireless,debug action=disk
 
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sergejs
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Re: Wireless disconnection messages explained!

Wed Aug 01, 2007 9:24 am

Then 'log print buffer=disk'.
 
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djape
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Re: Wireless disconnection messages explained!

Thu Aug 09, 2007 5:02 pm

Wow, thx so much for this...cheers...
 
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Re: Wireless disconnection messages explained!

Thu Sep 27, 2007 3:16 pm

This information avoided many questions! :D :D :lol:
 
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Re: Wireless disconnection messages explained!

Fri Sep 28, 2007 10:08 am

Hi,
I see a message not listed in your page:
"removed dynamic WDS link <DEV>, name"
but don't know the reason of removal.

So many thanks for your very usefull page! :)
 
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webformix
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Re: Wireless disconnection messages explained!

Sun Apr 20, 2008 5:53 am

Hey Normis, myself and possibly a growing number of other ROS users are experiencing issues that are detailed in my post @ Client Disconnect Issues

This seems to be a ROS + XR2/SR2 + Tranzeo CPQ compatibility issue? I took a look at the list of disconnect messages that you've listed, and was wondering if you could shed any additional light on the following error messages:

exchange timeout or received deauth:
4-way handshake timeout (15) error.
group key exchange timeout
unicast key exchange timeout

Thanks in advance!
 
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Re: Wireless disconnection messages explained!

Fri Apr 25, 2008 12:49 am

webformix,

I have just spent a happy day dealing with exactly the errors you list.

We solved permanently by changing channels. We were getting interference from a nearby wifi base station.

We found this with was happening with both Dlink DWL2100 AP in ap client mode and Mikrotik with R52 wifi cards.

Backing off the hardware retries to 4 from 15 made no difference. Playing antennae made no difference.

In the process we even found one client with many tx errors. swapped the client to no avail.

Changed channel and all solved.....

Good luck.
 
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Re: Wireless disconnection messages explained!

Tue Jul 15, 2008 7:48 pm

I was also experiencing the problem of my wireless clients getting disconnected the whole time......

I had a few of them in "client bridge" mode and the rest in "client" mode...( my CPE's are all linksys but my AP's are all mikrotik)

So I put them all in "client" mode and magically all my disconnecting errors have dissapeared......So i'm assuming that wireless bridges cannot co-exist with wireless clients......not sure if this is correct but it works in my setup

EDIT: It has been 6 hours since i tried the above and not 1 disconnect...previously it was every 2 minutes
 
nilesh
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Re: Wireless disconnection messages explained!

Thu Jul 24, 2008 2:36 pm

is there any specific log messege to kmow the reason of disconeection like network conjstion or authenticaion failure.

is there any facility to know the percentage of collision in between 2 points
 
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normis
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Re: Wireless disconnection messages explained!

Thu Jul 24, 2008 2:40 pm

is there any specific log messege to kmow the reason of disconeection like network conjstion or authenticaion failure.
did you read the page in the original post ???
No answer to your question? How to write posts
 
nilesh
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Re: Wireless disconnection messages explained!

Thu Jul 24, 2008 2:44 pm

i had read but there is nothing abt collision.
 
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normis
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Re: Wireless disconnection messages explained!

Thu Jul 24, 2008 2:49 pm

yes, there is nothing about collision, but there is certainly a lot about disconnection messages when authentication failed.

there is no way to determine any collisions.
No answer to your question? How to write posts
 
serthan
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Re: Wireless disconnection messages explained!

Thu Jul 31, 2008 9:58 am

thank you
Best Regards.
Serthan Öztürk
Electronic Engineer
http://www.sgsbilisim.com.tr
 
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Re: Wireless disconnection messages explained!

Mon Dec 22, 2008 5:01 pm

I could not debug but I tried to use C9 in ap bridge mode and clients get disconnected very often. How can I use it as AP and not have problems do clients "see" if it set to "client" mode?
 
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normis
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Re: Wireless disconnection messages explained!

Tue Dec 23, 2008 10:19 am

I could not debug but I tried to use C9 in ap bridge mode and clients get disconnected very often. How can I use it as AP and not have problems do clients "see" if it set to "client" mode?
please read this topic from beginning. enable debug mode, and see what log says then
No answer to your question? How to write posts
 
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Re: Wireless disconnection messages explained!

Wed Feb 18, 2009 12:09 am

How about "disconnected - too many poll timeouts"
 
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Re: Wireless disconnection messages explained!

Thu Jul 23, 2009 5:07 am

How about "disconnected - too many poll timeouts"
I'm getting this a lot too with the newer wireless-test package with nstreme and polling enabled. One one specific tower, everything is fine if the noise floor is -99 or -100, but if it gets any worse than -98, everything starts freaking out and the only way to ensure a solid connection is with a -60 or better signal. It should be much more stable at much lower signals than that.
 
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Re: Wireless disconnection messages explained!

Thu Oct 08, 2009 3:15 pm

How about "disconnected - too many poll timeouts"
I'm getting this a lot too with the newer wireless-test package with nstreme and polling enabled. One one specific tower, everything is fine if the noise floor is -99 or -100, but if it gets any worse than -98, everything starts freaking out and the only way to ensure a solid connection is with a -60 or better signal. It should be much more stable at much lower signals than that.
what is your HW. retries value? If you have a newer ROS the default value is 4. It may be too low for the good link. I have just solved disconnect problems on nstreme link (no dual nstreme) with changing Hw. retries from 4 to 10 (ROS 3.30). The link was working fine except that it tended to disconnect frequently under load. After the change links never disconnected yet.
 
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Re: Wireless disconnection messages explained!

Sat Oct 10, 2009 2:54 pm

How about "disconnected - too many poll timeouts"
I have just solved disconnect problems on nstreme link (no dual nstreme) with changing Hw. retries from 4 to 10 (ROS 3.30). The link was working fine except that it tended to disconnect frequently under load. After the change links never disconnected yet.
Did you change the HW retries to 10 on the AP or the AP and CPE?
 
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Re: Wireless disconnection messages explained!

Mon Oct 12, 2009 2:30 pm

How about "disconnected - too many poll timeouts"
Did you change the HW retries to 10 on the AP or the AP and CPE?
I changed hw. retries on both sides. But it was a PtP link - not AP with many clients.

Perhaps it would be enough to increase the retries on only one side ( the side which as problems with delivering frames to the other side) - if a problem affect only one direction
 
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Re: Wireless disconnection messages explained!

Thu May 13, 2010 9:15 am

Very helpful and well written article - exceptionally useful for those with wireless issues to resolve.

A link to this article should be made sticky in the Forum imho as I suspect that it will answer a lot of faqs immediately.

Thanks Normis!
 
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Re: Wireless disconnection messages explained!

Wed May 26, 2010 7:34 pm

From above:

"Talking about disconnection.

I suffered mainly two problems.
a) trees disturbing registration, so, moving antennas was the solution
b) excesive power on antennas, so, N/S ratio was too poor

I solved this problem, today not disconnection messages since 3 months ago!

Thanks."

what is N/S ratio mean?
 
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Re: Wireless disconnection messages explained!

Thu Jun 10, 2010 9:59 am

I think S/N raiot was meant, meaning signal/noise. So how much "louder" your signal is than the RF noise that's around. If your signal is too weak and nearly at the level of the noise, the receiver on the wireless card cannot detect and decode the signal correctly.
Best regards,
Christian Meis
 
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Re: Wireless disconnection messages explained!

Sat Jun 26, 2010 2:24 am

Thank you normis for posting this conf, very usable.
"Your chances of success in any undertaking can always be measured by your belief in yourself". - Robert Collier
 
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Re: Wireless disconnection messages explained!

Thu Jul 01, 2010 5:00 pm

Thanks. Makes a bit more sense now! :D
I wouldn’t’ be asking if I knew how it works !!!
 
murali438
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Re: Wireless disconnection messages explained!

Fri Jul 09, 2010 1:32 pm

what are the messeages called "unicast key exchange time out "
and "disconnected extensive data loss"
 
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normis
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Re: Wireless disconnection messages explained!

Fri Jul 09, 2010 1:39 pm

No answer to your question? How to write posts
 
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Re: Wireless disconnection messages explained!

Sat Jul 10, 2010 8:29 pm

Very helpful and organized information.
 
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Re: Wireless disconnection messages explained!

Tue Oct 26, 2010 12:42 am

Any ideas what this might mean?
You do not have the required permissions to view the files attached to this post.
 
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normis
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Re: Wireless disconnection messages explained!

Tue Oct 26, 2010 8:06 am

what exactly? wireless logs don't show any problems
No answer to your question? How to write posts
 
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neandero
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Re: Wireless disconnection messages explained!

Fri Oct 29, 2010 12:10 am

Yes, I would want to what is the cause of the below:

I would also want to know if there is a way to NOT log info for a specific mac so my log file will not be so full :(

Image
 
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normis
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Re: Wireless disconnection messages explained!

Fri Oct 29, 2010 8:27 am

extensive data loss, bad signal.
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Re: Wireless disconnection messages explained!

Fri Oct 29, 2010 12:58 pm

@Normis

Could you please explain this message: 'lost connection, not polled for too long'.
Can't find it here http://wiki.mikrotik.com/wiki/Wireless_Debug_Logs

TIA, Grzegorz.
Grzegorz | MTCNA, MTCRE, MTCSE | konsultacje MikroTik Warszawa
It is a book about a Spanish guy called Manual. You should read it. - Dilbert
 
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normis
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Re: Wireless disconnection messages explained!

Fri Oct 29, 2010 1:02 pm

@Normis

Could you please explain this message: 'lost connection, not polled for too long'.
Can't find it here http://wiki.mikrotik.com/wiki/Wireless_Debug_Logs

TIA, Grzegorz.
nstreme config needs checking. email support with supout.rif file
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