I have a problem connecting to my wireless when I upgraded to 12.04 from 10.04. I have the Atheros 9285 card and it's using the ath9k driver.
The failure is:
[ 3262.329542] wlan0: authenticate with 00:26:88:e6:db:34 (try 1) [ 3262.331556] wlan0: authenticated [ 3262.361303] wlan0: associate with 00:26:88:e6:db:34 (try 1) [ 3262.365295] wlan0: RX AssocResp from 00:26:88:e6:db:34 (capab=0x411 status=12 aid=0) [ 3262.365301] wlan0: 00:26:88:e6:db:34 denied association (code=12) [ 3262.385620] wlan0: deauthenticating from 00:26:88:e6:db:34 by local choice (reason=3)
It occurs only when I connect to a router set to WPA TKIP. Works fine with WPA AES. Is this a driver problem or something in nm? I've seen similar reports with other drivers.
When this occurs, nm seems to report that I am connected for 30 sec (though there is no connection) so this may relate to other bug reports.