#9936 NORM Not Tri: First WPA2 association (TKIP/AES) always fails, retries succeed (was: WPA2 connectivity)

Zarro Boogs per Child bugtracker at laptop.org
Thu Dec 31 08:33:03 EST 2009


#9936: First WPA2 association (TKIP/AES) always fails, retries succeed
------------------------------------+---------------------------------------
           Reporter:  cabalde       |       Owner:  martin.langhoff       
               Type:  defect        |      Status:  new                   
           Priority:  normal        |   Milestone:  Not Triaged           
          Component:  not assigned  |     Version:  1.0 Software Build 802
         Resolution:                |    Keywords:                        
        Next_action:  never set     |    Verified:  0                     
Deployment_affected:                |   Blockedby:                        
           Blocking:                |  
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Comment(by martin.langhoff):

 Thanks for updating the logs. I have reviewed / correlated the tkip log
 with messages, the "action" is all at 9:30:30 (11:30:30 on the
 wpa_supplicant log).

 It looks like

 * supplicant reports EAP success _and_ failure:
 {{
 Wed Dec 30 11:30:30 2009: EAPOL: External notification - EAP success=0
 Wed Dec 30 11:30:30 2009: EAPOL: External notification - EAP fail=0
 }}

 * then wpa_supplicant completes the association, sends an "association
 successful" msg to NM, and then immediately disconnects (and "blacklists"
 the BSSID) -- just as NM is firing up dhclient

 Next steps:

 Cecilia - the 'messages' file doesn't seem to cover the AES run, and I
 would like to see the success logs too, against the same AP. Can you do a
 new run of associations - capturing messages and wpa_supplicant log for
 success and failure of TKIP and AES? We'll end up with 8 files total I
 guess.

 If that is inconclusive, I will try to prepare some patched
 wpa_supplicants for you to try; in preparation for that, could you confirm
 if:

  - Does the 8.2.0 build show this bug? http://wiki.laptop.org/go/8.2.0  --
 It will be affected by the random failure I fixed in NM, but I suspect it
 may not be affected by the bug we are discussing here: "first WPA2 attempt
 always fails".

  - Does the latest "F11-for-XO-1" build show this bug?

  - What make/model of AP is this tested with? What chipset does it use?
 Have you tested different APs/chipsets? (For example - WPA2/TKIP works
 correctly for me with an Apple AirportExpress.)

-- 
Ticket URL: <http://dev.laptop.org/ticket/9936#comment:3>
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