Re: associating -> disconnected

[Bill Moseley <moseley hank org>]

On Mon, Jun 15, 2009 at 11:37:39AM +0200, Alexander Sack wrote:
> 
> Hi,
> 
> On Sun, Jun 14, 2009 at 07:37:49AM -0700, Bill Moseley wrote:
> > I recently upgraded from Ubuntu 8.10 to 9.04 a Thinkpad with an
> > Atheros AR5418 using the ath9k module.
> 
> Could you please check if more recent drivers help you? For that
> install linux-backports-modules-jaunty and then restarting your system.

I installed that package. I'm not seeing as many drop-outs, but still
do occur.

Here's an example just now.  Not sure why it says I roamed away.
nm-applet shows 4 "bars" of 5 and the laptop is stationary.

What I'm curious about is if this is an issue with my access point or
the laptop.  My MacBook doesn't show drop-outs, but I'm not sure I
trust the wireless indicator on the Apple to let me know.  I don't use
ssh on that machine as much so I might not notice problems.

I notice pauses when typing over ssh on this Ubuntu laptop -- I use
mutt on a remote machine.  It's not latency, but what I type is not
echoed for a few seconds and then it catches up.  Somewhat annoying.  ;)



wlan0     IEEE 802.11abgn  ESSID:"hanklan2"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:09:5B:B3:C7:18   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry min limit:7   RTS thr:off   Fragment thr=2352 B   
          Power Management:off
          Link Quality=53/70  Signal level=-57 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0



Jun 22 23:36:33 tiger NetworkManager: <debug> [1245738993.003380] periodic_update(): Roamed from BSSID 00:09:5B:B3:C7:18 (hanklan2) to (none) ((none)) 
Jun 22 23:36:35 tiger kernel: [ 8613.055945] wlan0: beacon loss from AP f60c86b8 - sending probe request
Jun 22 23:36:39 tiger NetworkManager: <debug> [1245738999.003796] periodic_update(): Roamed from BSSID (none) ((none)) to 00:09:5B:B3:C7:18 (hanklan2) 
Jun 22 23:38:33 tiger NetworkManager: <debug> [1245739113.002827] periodic_update(): Roamed from BSSID 00:09:5B:B3:C7:18 (hanklan2) to (none) ((none)) 
Jun 22 23:38:35 tiger kernel: [ 8733.059079] wlan0: beacon loss from AP f60c86b8 - sending probe request
Jun 22 23:38:39 tiger NetworkManager: <debug> [1245739119.002301] periodic_update(): Roamed from BSSID (none) ((none)) to 00:09:5B:B3:C7:18 (hanklan2) 
Jun 22 23:39:39 tiger kernel: [ 8797.642415] wlan0: deauthenticated (Reason: 2)
Jun 22 23:39:39 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  completed -> disconnected 
Jun 22 23:39:40 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  disconnected -> scanning 
Jun 22 23:39:40 tiger kernel: [ 8798.640075] wlan0: direct probe to AP f60c86b8 try 1
Jun 22 23:39:40 tiger kernel: [ 8798.643355] wlan0 direct probe responded
Jun 22 23:39:40 tiger kernel: [ 8798.643359] wlan0: authenticate with AP f60c86b8
Jun 22 23:39:40 tiger kernel: [ 8798.645352] wlan0: authenticated
Jun 22 23:39:40 tiger kernel: [ 8798.645356] wlan0: associate with AP f60c86b8
Jun 22 23:39:40 tiger kernel: [ 8798.647842] wlan0: RX ReassocResp from f639604a (capab=0x431 status=0 aid=1)
Jun 22 23:39:40 tiger kernel: [ 8798.647847] wlan0: associated
Jun 22 23:39:40 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  scanning -> 4-way handshake 
Jun 22 23:39:41 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  4-way handshake -> associated 
Jun 22 23:39:45 tiger NetworkManager: <debug> [1245739185.004575] periodic_update(): Roamed from BSSID 00:09:5B:B3:C7:18 (hanklan2) to (none) ((none)) 
Jun 22 23:39:47 tiger kernel: [ 8805.107816] wlan0: beacon loss from AP f60c86b8 - sending probe request
Jun 22 23:39:47 tiger kernel: [ 8805.110134] wlan0: deauthenticated (Reason: 7)
Jun 22 23:39:47 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  associated -> disconnected 
Jun 22 23:39:47 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  disconnected -> scanning 
Jun 22 23:39:48 tiger kernel: [ 8806.108102] wlan0: direct probe to AP f60c86b8 try 1
Jun 22 23:39:48 tiger kernel: [ 8806.111371] wlan0 direct probe responded
Jun 22 23:39:48 tiger kernel: [ 8806.111375] wlan0: authenticate with AP f60c86b8
Jun 22 23:39:48 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  scanning -> 4-way handshake 
Jun 22 23:39:48 tiger kernel: [ 8806.113348] wlan0: authenticated
Jun 22 23:39:48 tiger kernel: [ 8806.113353] wlan0: associate with AP f60c86b8
Jun 22 23:39:48 tiger kernel: [ 8806.115860] wlan0: RX ReassocResp from f292004a (capab=0x431 status=0 aid=1)
Jun 22 23:39:48 tiger kernel: [ 8806.115864] wlan0: associated
Jun 22 23:39:48 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  4-way handshake -> associated 
Jun 22 23:39:54 tiger kernel: [ 8812.575878] wlan0: beacon loss from AP f60c86b8 - sending probe request
Jun 22 23:39:54 tiger NetworkManager: <info>  (wlan0): supplicant connection state:  associated -> disconnected 

-- 
Bill Moseley.
moseley hank org
Sent from my iMutt