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kiwi-chris
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5.8 links falling over - no beacons ?

Thu Feb 09, 2006 10:47 am

I am having a few problem with my 5.8 links falling over and dropping off everyone every so often. It may be 1 hour or 10 hours, seams very random.
It seams to do it with both links, but not at the same time.

Uplink site has a 532 with CM9 and SR5 ver 2.9.11
Hill site 1 has 532 with CM9 and SR2 ver 2.9.11
Hill site 2 has 532 with SR5 and SR2 ver 2.9.11
Both links sit around the -65 to -72 mark
Most client are connected to another router (532 or 512) at the hill sites and the 2.4 links are up for weeks.
Clients use pppoe so need to hit the connect.
Was 2.9rc7 which did it also.
No one here uses 5.8 or even 2.4 so not really interference
One uses 5805 the other 5825.
From memory before I had the second site (just site 1) it would do it. So I dont think it is a frequency problem

No one complains as it only takes seconds to sort it self out, but would be good to not have the glitch so everyone does not have to login again.

chris


This is what the log says:

20:49:25 wireless,info bb-hurunui: disconnected 00:15:6D:10:0A:F6, no beacons
20:49:25 wireless,debug bb-hurunui: removed dynamic WDS link 00:15:6D:10:0A:F6, name
20:49:25 wireless,info bb-hurunui: data from unknown device 00:15:6D:10:0A:F6, sent deauth
(8 events suppressed)
20:49:25 wireless,info bb-hurunui: data from unknown device 00:15:6D:10:0A:F6, sent deauth
20:49:26 wireless,info bb-hurunui: data from unknown device 00:15:6D:10:0A:F6, sent deauth
20:49:26 wireless,info bb-hurunui: data from unknown device 00:15:6D:10:0A:F6, sent deauth
20:49:26 wireless,info bb-hurunui: data from unknown device 00:15:6D:10:0A:F6, sent deauth
20:49:30 wireless,debug bb-hurunui: 00:15:6D:10:0A:F6 attempts to connect
20:49:30 wireless,debug bb-hurunui: AP 00:15:6D:10:0A:F6 not matched by connect-list, by
default accept
20:49:30 wireless,debug bb-hurunui: created WDS link 00:15:6D:10:0A:F6, name
20:49:30 wireless,info bb-hurunui: 00:15:6D:10:0A:F6 connected, is AP, wants WDS
20:49:30 pppoe,info PPPoE connection established from 00:02:6F:3A:DD:F2
 
MyThoughts
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Fri Feb 10, 2006 6:37 pm

I have been fighting with this problem in the 2.4GHz range for months. I get these random odd disconnects, on both my backhauls and on some of my clients. I've tried changing cards, frequencies, different antennas, I've double checked for moisture, or anything else that could explain this, but I have yet to find anything that explains it. With the new 2.9.12 I can monitor the SNR and noise floor. All link have >25 SNR and noise floors <-90. I do not believe it is a interference issue, but I am having trouble finding any other reason.

Does anyone have any insight to what causes this so it can be addressed?
 
kiwi-chris
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Fri Feb 10, 2006 11:21 pm

At the other end the router has a couple of clients and they do not get disconnected (802.11b) but still loose there pppoe and have to login.
The outage is smaller than the 5 min so the router does not re boot.

This link has SR5 at both ends into 29dB grids

Could it be birds sitting on the horn of the antenna?

chris


Here is the log file from the other end.

jan/01 00:40:52 wireless,info bb-Culverden: disconnected 00:15:6D:10:0A:EB, no beacons
jan/01 00:41:05 wireless,info bb-Culverden: 00:15:6D:10:0A:EB connected, is AP, wants WDS
jan/01 05:52:26 wireless,info bb-Culverden: disconnected 00:15:6D:10:0A:EB, no beacons
jan/01 05:52:43 wireless,info bb-Culverden: 00:15:6D:10:0A:EB connected, is AP, wants WDS
jan/01 14:49:46 wireless,info Hurunui1: 00:02:6F:3A:E1:2C connected
jan/01 15:13:16 wireless,info Hurunui1: disconnected 00:02:6F:3A:E1:2C, extensive data loss
jan/01 16:30:09 wireless,info bb-Culverden: disconnected 00:15:6D:10:0A:EB, no beacons
jan/01 16:30:30 wireless,info bb-Culverden: 00:15:6D:10:0A:EB connected, is AP, wants WDS
jan/01 22:49:26 wireless,info bb-Culverden: disconnected 00:15:6D:10:0A:EB, no beacons
jan/01 22:49:35 wireless,info bb-Culverden: 00:15:6D:10:0A:EB connected, is AP, wants WDS
jan/01 22:49:45 wireless,info bb-Culverden: disconnected 00:15:6D:10:0A:EB, no beacons
jan/01 22:49:49 wireless,info bb-Culverden: 00:15:6D:10:0A:EB connected, is AP, wants WDS
04:42:19 wireless,info bb-Culverden: disconnected 00:15:6D:10:0A:EB, no beacons
04:42:38 wireless,info bb-Culverden: 00:15:6D:10:0A:EB connected, is AP, wants WDS
 
Jrslick22
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??

Sun Feb 12, 2006 1:47 am

Are you in NZ Chris?
 
kiwi-chris
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Sun Feb 12, 2006 2:56 am

sure are
 
Jrslick22
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Sun Feb 12, 2006 3:16 am

sure are
Where? im in Hamilton
 
kiwi-chris
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Sun Feb 12, 2006 8:32 am

Canterbury
Flick me you phone number in an email and I can give you a call
Last edited by kiwi-chris on Sun Feb 12, 2006 9:04 pm, edited 1 time in total.
 
Borage
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Sun Feb 12, 2006 8:05 pm

I have a similar problem with a Mikrotik router working as a client, but my client disconnects every eight minute. The only settings I have changed is that I enabled WEP. The signal-strength is steady at -74dBm to -75dBm.
17:21:42 wireless,info wlan1: lost connection to 00:40:96:22:D2:24, no beacons 
17:21:44 wireless,info wlan1: failed to connect to 00:40:96:22:D2:24, join timeout 
17:21:56 wireless,info wlan1: connected to 00:40:96:22:D2:24 on 2437, SSID N5921.829E01805.822 
17:29:31 wireless,info wlan1: lost connection to 00:40:96:22:D2:24, no beacons 
17:29:33 wireless,info wlan1: failed to connect to 00:40:96:22:D2:24, join timeout 
17:29:45 wireless,info wlan1: connected to 00:40:96:22:D2:24 on 2437, SSID N5921.829E01805.822 
17:37:20 wireless,info wlan1: lost connection to 00:40:96:22:D2:24, no beacons 
17:37:22 wireless,info wlan1: failed to connect to 00:40:96:22:D2:24, join timeout 
17:37:34 wireless,info wlan1: connected to 00:40:96:22:D2:24 on 2437, SSID N5921.829E01805.822
 
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Equis
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Mon Apr 17, 2006 9:16 am

Hello,

Has anyone seen a fix for this problem yet, I also have tried many things wih no luck

Thanks
 
kiwi-chris
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Mon Apr 17, 2006 9:57 am

Yes have it sorted now. One end is running as AP bridge and the other station wds. Hope this helps
 
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Equis
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Mon Apr 17, 2006 10:16 am

Thanks

So setting Setting Station WDS instead of Station Worked?

Thanks :)
 
kiwi-chris
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Mon Apr 17, 2006 10:29 am

yes, the links have not dropped out since making the changes. Some times they may have been up for a couple of days and the other times just hours. Works 100% so far.
 
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Equis
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Mon Apr 17, 2006 10:33 am

Thanks :)
 
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Equis
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Wed Apr 19, 2006 4:29 am

Yes have it sorted now. One end is running as AP bridge and the other station wds. Hope this helps
Hello,

Would this solution work on an AP with 20 clients hanging off it do you think? I wasn't sure doing the WDS thing with so many clients was a goof idea

I am getting the no beacon thing every few hours, the AP is not RouterOS (yet) but the routerOS client is the only one that has this problem.

I would like to switch my network to routeros but this problem worrys me

Thanks
 
kiwi-chris
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Wed Apr 19, 2006 12:27 pm

I had the problem on the backhaul links which are point to point. From what you are saying its your point to multi point links, which I am not sure, but I have them set to ap bridge @ 2.4GHz.
 
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Equis
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Wed Apr 19, 2006 12:43 pm

Hi Chris,

Thanks Again

This troublesome unit is a client end of a backhaul link.

I was thinking if it does this with a backhaul it woudl surely do it with a PtMP setup.

My users run applications that would notice 10 seconds of downtime.

Have you seen this problem much or only with your bachhaul?

Thanks
 
kiwi-chris
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Wed Apr 19, 2006 12:52 pm

Clients connecting in at 2.4GHz can be up for months without a drop off, but it was the back haul links that I could never keep up for more than a couple of days. This would cause the client to loose the pppoe connection. Now they never loose it. When changes were made it did not drop the pppoe connection of those currently connected which surprised me.

Suggest if you were to change any settings do it at night and have a backup plan to reverse any changes should it fail.
 
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Equis
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Wed Apr 19, 2006 12:56 pm

Thanks so much for your help

So is your backhaul still on 5.8 (and using WDS)?

Do you use routeros for the clients?
I'm thinking of using nstreame for everything.

Thanks Again!
 
kiwi-chris
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Wed Apr 19, 2006 1:03 pm

backhaul on 5.8

I am using RB500 units so I dont think I can use nstreme, correct me if I am wrong. (I will work but not sure if good in the long run)

Clients using simple client radios, cheap and easy.

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