Comment 2 for bug 425455

Same issue here, connecting with my laptop resets the AP, a D-Link Airplus G 2.4GHz wgl-g700ap thereby disconnecting all other devices.

My NIC is a:
01:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)

The other computer (running Jaunty) has a:
03:00.0 Network controller: Intel Corporation PRO/Wireless 4965AG or AGN [Kedron] Network Connection (rev 61)

We tried installing Karmic on the second computer a while ago, but switched back to Jaunty when the network issue occured. My laptop (the one with Karmic) works as expected with WPA2 at home, but not here.

I have a tcpdump -vvv -i wlan0 -w to send to anyone interested. Anything else that would be useful?

dmesg:
...
[55389.049332] wlan0: authenticate with AP 00:19:5b:04:c7:cf
[55389.052026] wlan0: authenticated
[55389.052034] wlan0: associate with AP 00:19:5b:04:c7:cf
[55389.054257] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=2)
[55389.054265] wlan0: AP denied association (code=12)
[55389.252120] wlan0: associate with AP 00:19:5b:04:c7:cf
[55389.254446] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=2)
[55389.254455] wlan0: AP denied association (code=12)
[55389.456057] wlan0: associate with AP 00:19:5b:04:c7:cf
[55389.458294] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=2)
[55389.458303] wlan0: AP denied association (code=12)
[55389.656131] wlan0: association with AP 00:19:5b:04:c7:cf timed out
[55396.665209] wlan0: authenticate with AP 00:19:5b:04:c7:cf
[55396.668432] wlan0: authenticated
[55396.668440] wlan0: associate with AP 00:19:5b:04:c7:cf
[55396.671826] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=1)
[55396.671834] wlan0: AP denied association (code=12)
[55396.868134] wlan0: associate with AP 00:19:5b:04:c7:cf
[55396.870436] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=1)
[55396.870444] wlan0: AP denied association (code=12)
[55397.068091] wlan0: associate with AP 00:19:5b:04:c7:cf
[55397.070414] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=1)
[55397.070422] wlan0: AP denied association (code=12)
[55397.268082] wlan0: association with AP 00:19:5b:04:c7:cf timed out
[55402.084845] wlan0: authenticate with AP 00:19:5b:04:c7:cf
[55402.088613] wlan0: authenticated
[55402.088621] wlan0: associate with AP 00:19:5b:04:c7:cf
[55402.092001] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=1)
[55402.092033] wlan0: AP denied association (code=12)
[55402.288127] wlan0: associate with AP 00:19:5b:04:c7:cf
[55402.290464] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=1)
[55402.290472] wlan0: AP denied association (code=12)
[55402.488172] wlan0: associate with AP 00:19:5b:04:c7:cf
[55402.490425] wlan0: RX AssocResp from 00:19:5b:04:c7:cf (capab=0x411 status=12 aid=1)
[55402.490434] wlan0: AP denied association (code=12)
[55402.688115] wlan0: association with AP 00:19:5b:04:c7:cf timed out
...