Authentication times out at 4WAY_HANDSHAKE -> GROUP_HANDSHAKE

Sukhdeep Johar sukhdeep at gmail.com
Thu Aug 30 14:23:46 EDT 2007


do you have multiple WLANs configured on your AP ?
I have seen group handshake failure when the AP and client do not agree on
the encryption type(group cipher) for the broadcast packets.


On 8/30/07, Sergey Krilov <serg.kr at gmail.com> wrote:
>
> Hello,
>
> I'm having trouble connecting to my wireless home network. I'm running
> wpa_supplicant 0.5.8 on Ubuntu 7.04. My wireless card has the bcm43xx
> chipset (specifically, it is the Broadcom 4321AG a/b/g/draft-n), and
> I'm using the ndiswrapper 1.47 module. My router model is Belkin
> F5D8231-4 v2.
>
> The problem is that about 95% of the time, the authentication process
> times out right after this line:
>
> State: 4WAY_HANDSHAKE -> GROUP_HANDSHAKE
>
> Furthermore, every time it fails, this line is present somewhere
> within that trial:
>
> WPA: drop TX EAPOL in non-IEEE 802.1X mode (type=1 len=0)
>
> I'm not really an expert at interpreting this, so I don't know if this
> is significant. I am posting several links to the wpa_supplicant log
> when I run it with the -d option. I broke up the log into several
> files and added some newlines in the hope that it would be easier to
> read and interpret, as well as compare side by side (with a program
> like tkdiff) if necessary. The first file displays some preliminary
> output from wpa_supplicant, the next 5 files represent the 5 times
> that wpa_supplicant tried and failed to authenticate with the router.
> They are very similar, but not identical. The 6th file shows what
> success looks like.
>
> http://wowway.com/~vkrilov1061/startup0
> http://wowway.com/~vkrilov1061/trial1
> http://wowway.com/~vkrilov1061/trial2
> http://wowway.com/~vkrilov1061/trial3
> http://wowway.com/~vkrilov1061/trial4
> http://wowway.com/~vkrilov1061/trial5
> http://wowway.com/~vkrilov1061/success6
>
> The command I ran to start wpa_supplicant looked like this:
> # wpa_supplicant -iwlan0 -Dwext -c/etc/wpa_supplicant.conf -d >
> wpa_problem.txt
>
> And my wpa_supplicant.conf looks like this:
>
> network={
>        ssid="Belkin_N1_Wireless_398290"
>        key_mgmt=WPA-PSK
>        proto=WPA
>        pairwise=TKIP
>        group=TKIP
>        psk="secret"
>        priority=100
> }
>
>
> This does not appear to be a hardware problem -- on Windows (I'm
> dual-booting), I have no trouble connecting.
>
> Does anyone know why this happens? How can I go about solving this?
>
> Thanks in advance for any help.
> _______________________________________________
> HostAP mailing list
> HostAP at shmoo.com
> http://lists.shmoo.com/mailman/listinfo/hostap
>



-- 
But for the last minute,... Nothing would get done.
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