I have a similar problem with an iwl4965 wireless device. wpa_supplicant
works fine with WEP and WPA when I use the device independently, however
when it is bonded, only WEP works, and WPA does not.  Here is the output
from dmesg:

Mar 30 13:20:55 localhost kernel: wlan0: Initial auth_alg=0
Mar 30 13:20:55 localhost kernel: wlan0: authenticate with AP 00:1c:10:41:cd:9e
Mar 30 13:20:55 localhost kernel: wlan0: Initial auth_alg=0
Mar 30 13:20:55 localhost kernel: wlan0: authenticate with AP 00:1c:10:41:cd:9e
Mar 30 13:20:55 localhost kernel: wlan0: RX authentication from 
00:1c:10:41:cd:9e (alg=0 transaction=2 status=0)
Mar 30 13:20:55 localhost kernel: wlan0: authenticated
Mar 30 13:20:55 localhost kernel: wlan0: associate with AP 00:1c:10:41:cd:9e
Mar 30 13:20:55 localhost kernel: wlan0: authentication frame received from 
00:1c:10:41:cd:9e, but not in authenticate state - ignored
Mar 30 13:20:55 localhost kernel: wlan0: authentication frame received from 
00:1c:10:41:cd:9e, but not in authenticate state - ignored
Mar 30 13:20:55 localhost kernel: wlan0: RX AssocResp from 00:1c:10:41:cd:9e 
(capab=0x431 status=0 aid=1)
Mar 30 13:20:55 localhost kernel: wlan0: associated
Mar 30 13:20:55 localhost kernel: wlan0: switched to long barker preamble 
(BSSID=00:1c:10:41:cd:9e)
Mar 30 13:20:55 localhost kernel: bonding: bond0: link status definitely up for 
interface wlan0.
Mar 30 13:20:59 localhost kernel: wlan0: RX deauthentication from 
00:1c:10:41:cd:9e (reason=15)
Mar 30 13:20:59 localhost kernel: wlan0: deauthenticated
Mar 30 13:20:59 localhost kernel: bonding: bond0: link status definitely down 
for interface wlan0, disabling it
Mar 30 13:21:00 localhost kernel: wlan0: authenticate with AP 00:1c:10:41:cd:9e
Mar 30 13:21:00 localhost kernel: wlan0: RX authentication from 
00:1c:10:41:cd:9e (alg=0 transaction=2 status=0)
Mar 30 13:21:00 localhost kernel: wlan0: authenticated
Mar 30 13:21:00 localhost kernel: wlan0: associate with AP 00:1c:10:41:cd:9e
Mar 30 13:21:00 localhost kernel: wlan0: RX ReassocResp from 00:1c:10:41:cd:9e 
(capab=0x431 status=0 aid=1)
Mar 30 13:21:00 localhost kernel: wlan0: associated
Mar 30 13:21:00 localhost kernel: wlan0: switched to long barker preamble 
(BSSID=00:1c:10:41:cd:9e)
Mar 30 13:21:00 localhost kernel: iwl4965: Error sending REPLY_RXON_ASSOC: 
Already sending a host command
Mar 30 13:21:00 localhost kernel: bonding: bond0: link status definitely up for 
interface wlan0.
Mar 30 13:21:04 localhost kernel: wlan0: RX deauthentication from 
00:1c:10:41:cd:9e (reason=15)
Mar 30 13:21:04 localhost kernel: wlan0: deauthenticated
Mar 30 13:21:04 localhost kernel: bonding: bond0: link status definitely down 
for interface wlan0, disabling it

This repeats in a loop - successful association with the AP, then 4
seconds after the bonding device notes that the wireless link is
definitely up, there is a deauthentication with reason=15.

As I said above, WEP works just fine, only WPA is failing. WPA works as
long as bonding isn't involved.

I'm using kernel 2.6.24.1, and have tried with the 2.6.24.1 iwl4965
module, as well as two of the more recent development snapshots from the
compat-wireless project. wpasupplicant is version 0.6.3-1

-- 
wireless network not working now
https://bugs.launchpad.net/bugs/99432
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