Bug#683039: WPA/WPA2 can't associate with WZR-HP-AG300H

[Daniel Pocock <daniel@pocock.com.au>]

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683039

I have various wifi routers running OpenWRT

I can connect to a TP-Link TL-WR1043ND over and over again without any
problem

But when I try to connect to a Buffalo WZR-HP-AG300H I always have this
problem, from every client device, including various versions of Debian
and an Android device

My kernel packages on the impacted systems:

wheezy: linux-image-3.2.0-3-amd64
    3.2.23-1

[203448.256595] wlan0: authenticate with <hidden> (try 1)
[203448.258875] wlan0: authenticated
[203448.259143] wlan0: failed to insert Dummy STA entry for the AP
(error -17)
[203449.652588] wlan0: deauthenticating from <hidden> by local choice
(reason=2)



squeeze: linux-image-2.6.39-bpo.2-amd64
    2.6.39-3-bpo60+1

[69327.810838] wlan0: authenticate with <hidden> (try 1)
[69327.813521] wlan0: authenticated
[69327.813572] wlan0: associate with <hidden> (try 1)
[69327.816985] wlan0: RX AssocResp from <hidden> (capab=0x411 status=0
aid=1)
[69327.816994] wlan0: associated
[69331.813628] wlan0: deauthenticated from <hidden> (Reason: 2)


The Buffalo AP has the latest OpenWRT `Attitude Adjustment' build r33556

If I disable authentication on the AP, I can connect successfully


Can anyone comment on why this happens with some APs and not others?