WPA + ipw2200 = frequent CTRL-EVENT-DISCONNECTED

Jouni Malinen j
Wed Apr 11 19:39:04 PDT 2007

On Tue, Apr 10, 2007 at 08:29:30PM +0200, Kamil Jo?ca wrote:
>  I have wlan with hidden SSID. Authentication via freeradius (eap-tls).
> And I have frequent disconnections, for about last two weeks. I don't know
> if I change something in config. 

Which AP are you using?

>   group=CCMP
>   proto=WPA2
>   pairwise=CCMP

You have configured to client to use only CCMP.

> And wpa_supplicant output is here: http://strony.aster.pl/kjonca/wpa.txt

However, this debug log shows following:

WPA: Unsupported CCMP Group Cipher key length 32 (32).

In other words, it looks like the AP tries to use TKIP as the group
cipher. Either wpa_supplicant configuration would need to be changed to
accept TKIP as the group cipher or the AP configuration would need to be
changed to use CCMP as the group cipher.

Jouni Malinen                                            PGP id EFC895FA

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