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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.

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This is actually a comment rather than an answer to your question. I didn't think I'd have enough room in a comment so I used the answer format.

You don't explain in your question why you want to be able to use WPA TKIP. Frankly, if AES will work it is probably a better choice than TKIP, especially if you are using 802.11n (and your Atheros 9285 follows the 802.11n spec).

The 802.11n spec states that the high throughput rates (link rates above 54 Mbps) can not be enabled unless you either (1) use no security or (2) use WPA2 AES.
Ref: 5 Ways To Fix Slow 802.11n Speed

I am not trying to tell you to ignore the problem you are asking about. I just wanted to suggest that if you can use WPA2 AES that is probably what you to do.

share|improve this answer
1) Yes, by nm I meant Network Manager. This is the normal connect to the internet application that is started when you log on. – Art Olin May 20 '12 at 16:20
Regarding TKIP - this is controlled by the wireless access point. I can change this on my home system, but not for the university system, internet cafees etc. That's why it's important that all common access protocals be supported. – Art Olin May 20 '12 at 16:26
I tried switching to the WICP network interface from nm. I get the same problem of not associating with the access point. Will someone PLEASE fix the damn driver... – Art Olin Jun 25 '12 at 4:38

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