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тАО02-06-2006 08:10 PM
тАО02-06-2006 08:10 PM
420wl APs - Clients constantly reassociating
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тАО02-07-2006 12:29 PM
тАО02-07-2006 12:29 PM
Re: 420wl APs - Clients constantly reassociating
I haven't really come across that before. What firmware are you running? I'd recommend you update to 2.1.2 if you haven't already.
What sort of wireless NICs do the clients have? Have you tried updating their drivers?
If you're still having the same problem, if you can capture the logs and attach it to your post it may help understand what's happening.
Status -> Event Logs -> Copy & Paste of Event Logs
Also how many AP's are involved, how far apart are they, and what channels are they on? A network map would be useful.
Matt
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тАО02-07-2006 06:37 PM
тАО02-07-2006 06:37 PM
Re: 420wl APs - Clients constantly reassociating
We're running 2.1.2. It is occuring in 3 different locations. In each location the APs are about 20 meters apart. I've checked that their channel selection is good - on one pair they'd both auto'd to channel 6 so I forced one to channel 1.
Our clients are Compaq/HP laptops with Intel Centrino chips. I have actually observed the taskbar balloon notification constantly appearing and disappearing as the client continually reassociates.
Samples of logs are below. Is there a way of debugging the association and authentication process in more depth?
Thanks for your help.
1 Feb 08 06:58:09 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
2 Feb 08 06:58:09 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
3 Feb 08 06:57:39 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
4 Feb 08 06:57:39 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
5 Feb 08 06:57:39 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
6 Feb 08 06:56:39 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
7 Feb 08 06:56:39 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
8 Feb 08 06:56:39 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
9 Feb 08 06:56:39 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
10 Feb 08 06:56:39 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
11 Feb 08 06:56:30 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
12 Feb 08 06:56:29 Notice: 802.11g:SSID 1 ::Station Associated: 00-12-f0-64-68-6b
13 Feb 08 06:56:29 Notice: 802.11g:Station Forwarding: 00-12-f0-64-68-6b Encryption key type=STATIC WEP
14 Feb 08 06:56:29 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
15 Feb 08 06:56:29 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
16 Feb 08 06:56:29 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
17 Feb 08 06:56:28 Notice: 802.11g:SSID 1 ::Station Associated: 00-12-f0-64-68-6b
18 Feb 08 06:56:28 Notice: 802.11g:Station Forwarding: 00-12-f0-64-68-6b Encryption key type=STATIC WEP
19 Feb 08 06:56:28 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
20 Feb 08 06:56:21 Notice: 802.11g:SSID 1 ::Station Associated: 00-12-f0-64-68-6b
21 Feb 08 06:56:21 Notice: 802.11g:Station Forwarding: 00-12-f0-64-68-6b Encryption key type=STATIC WEP
22 Feb 08 06:56:21 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
23 Feb 08 06:56:08 Notice: 802.11g:SSID 1 ::Station Associated: 00-12-f0-64-68-6b
24 Feb 08 06:56:08 Notice: 802.11g:Station Forwarding: 00-12-f0-64-68-6b Encryption key type=STATIC WEP
25 Feb 08 06:56:08 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
26 Feb 08 06:55:33 Notice: 802.11g:SSID 1 ::Station Associated: 00-12-f0-64-68-6b
27 Feb 08 06:55:33 Notice: 802.11g:Station Forwarding: 00-12-f0-64-68-6b Encryption key type=STATIC WEP
28 Feb 08 06:55:33 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
29 Feb 08 06:55:33 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
30 Feb 08 06:54:33 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
31 Feb 08 06:54:33 Notice: 802.11g:SSID 1 ::Station Associated: 00-12-f0-64-68-6b
32 Feb 08 06:54:33 Notice: 802.11g:Station Forwarding: 00-12-f0-64-68-6b Encryption key type=STATIC WEP
33 Feb 08 06:54:33 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
34 Feb 08 06:54:33 Notice: 802.11g:SSID 1 ::Station Authenticated: 00-12-f0-64-68-6b
35 Feb 08 06:54:33 Notice: 802.11g:SSID 1 ::Station Associated: 00-12-f0-64-68-6b
36 Feb 08 06:54:33 Notice: 802.11g:Station Forwarding: 00-12-f0-64-68-6b Encryption key type=STATIC WEP
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тАО02-07-2006 06:40 PM
тАО02-07-2006 06:40 PM
Re: 420wl APs - Clients constantly reassociating
Feb 08 07:59:18 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
2 Feb 08 07:59:18 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
3 Feb 08 07:57:13 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
4 Feb 08 07:57:13 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
5 Feb 08 07:55:48 Notice: 802.11g:Station Associated: 00-12-f0-32-34-de
6 Feb 08 07:55:48 Notice: 802.11g:Station Authenticated: 00-12-f0-32-34-de
7 Feb 08 07:55:12 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
8 Feb 08 07:55:12 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
9 Feb 08 07:53:09 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
10 Feb 08 07:53:09 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
11 Feb 08 07:52:02 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
12 Feb 08 07:52:02 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
13 Feb 08 07:49:54 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
14 Feb 08 07:49:54 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
15 Feb 08 07:47:50 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
16 Feb 08 07:47:50 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
17 Feb 08 07:45:46 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
18 Feb 08 07:45:46 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
19 Feb 08 07:43:41 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
20 Feb 08 07:43:41 Notice: 802.11g:Station Authenticated: 00-12-f0-64-68-6b
21 Feb 08 07:42:29 Notice: 802.11g:Station Associated: 00-12-f0-64-68-6b
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тАО02-08-2006 03:01 AM
тАО02-08-2006 03:01 AM
Re: 420wl APs - Clients constantly reassociating
I see exactly the same problem with our 420ap's (with f/w 2.1.2), although we are running with Security Suite 7 (WPA/TKIP/802.1x).
Bursts of client authentication requests show in the AP logs. I was originally told this only happened when the client roamed between AP's, but I don't think this is the case. Happens too often.
Apparently, there is a v2.1.3 of the firmware in 'debug' that you were meant to be able to get hold of from HP Customer Care that fixed the problem, but when I asked, HP claimed it wasn't available! So, maybe it will be released sometime soon, who knows.
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тАО02-08-2006 03:16 AM
тАО02-08-2006 03:16 AM
Re: 420wl APs - Clients constantly reassociating
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тАО02-08-2006 09:36 AM
тАО02-08-2006 09:36 AM
Re: 420wl APs - Clients constantly reassociating
As you've already done, make sure the AP's are on non-overlapping channels 1,6 & 11.
The other thing you may want to try is reducing the radio power on the AP's to see if this improves the situation.
It's likely that the clients are in between the 2 AP's, or are getting the same signal strength. The clients keep making the call to jump to the other AP with slightly higher stength.
In the logs I can see duplicate entries which isn't a huge issue, I've noticed this bug before and it can be temporarily resolved by rebooting the AP.
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тАО02-08-2006 06:41 PM
тАО02-08-2006 06:41 PM