EAPOL Key timeout

Jouni Malinen j at w1.fi
Sat Apr 2 06:57:28 EDT 2011


On Sat, Apr 02, 2011 at 03:17:22AM +0300, Kucherenko Valeriy wrote:
> I'm using hostapd compiled from git and have a problem connecting to AP with Intel Centrino 6200AGN under Window 7. When the session is established the key negotiation works fine, but on next GTK rekey I always got EAPOL Key timeout that cause connection break. This loops again all the time.

Some Intel clients have been reported to be unable to receive EAPOL
frames without QoS header in some cases and that may explain this issue.

> Today I have checked the hostapd git repo and found a commit from Jouni Malinen "Work around SNonce updates on EAPOL-Key 1/4 retransmission" that theoretically could fix this problem. I've make a build from this snapshot, but the problem still persist.

That is a completely separate issue.

Please try with this patch from OpenWRT in hostapd:
http://w1.fi/p/730-nl80211_enable_qosdata.patch

It tries to work around this issue with Intel stations. Please let me
know whether it resolves the issue you are seeing.

-- 
Jouni Malinen                                            PGP id EFC895FA


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