AP can't join controller

[simonwynn]

I'be upgarding and downgrading a WLC 2106 from 6.x to 7.x a few time, now my AP, can no longer join...

logs from WLC - any ideas?

Oct 06 20:20:38.517: [ERROR] phy.c 157: link on port 3 change to up

Oct 06 20:20:36.490: [ERROR] phy.c 147: link on port 3 change to down

*Oct 06 20:20:28.683: %LWAPP-3-DECRYPT_ERR: spam_lrad.c:3736 Unable to decrypt image data message; AP 00:21:a0:d2:1b:be

*Oct 06 20:20:28.683: %LWAPP-3-DECRYPT_ERR: spam_crypto.c:735 Unable to decrypt LWAPP packet; AP 00:21:a0:d2:1b:be

*Oct 06 20:20:28.683: %LWAPP-3-DECRYPT_ERR5: spam_crypto.c:293 Error decrypting packet (using old key) from AP 00:21:a0:d2:1b:be (session identifier 1780a2b5)

*Oct 06 20:20:27.669: %LWAPP-3-DECRYPT_ERR: spam_lrad.c:3736 Unable to decrypt image data message; AP 00:21:a0:d2:1b:be

*Oct 06 20:20:27.669: %LWAPP-3-DECRYPT_ERR: spam_crypto.c:735 Unable to decrypt LWAPP packet; AP 00:21:a0:d2:1b:be

*Oct 06 20:20:27.669: %LWAPP-3-DECRYPT_ERR5: spam_crypto.c:293 Error decrypting packet (using old key) from AP 00:21:a0:d2:1b:be (session identifier 1780a2b5)

*Oct 06 20:20:26.654: %LWAPP-3-DECRYPT_ERR: spam_lrad.c:3736 Unable to decrypt image data message; AP 00:21:a0:d2:1b:be

*Oct 06 20:20:26.654: %LWAPP-3-DECRYPT_ERR: spam_crypto.c:735 Unable to decrypt LWAPP packet; AP 00:21:a0:d2:1b:be

*Oct 06 20:20:26.654: %LWAPP-3-DECRYPT_ERR5: spam_crypto.c:293 Error decrypting packet (using old key) from AP 00:21:a0:d2:1b:be (session identifier 1780a2b5)

*Oct 06 20:20:25.640: %LWAPP-3-DECRYPT_ERR: spam_lrad.c:3736 Unable to decrypt image data message; AP 00:21:a0:d2:1b:be

*Oct 06 20:20:25.640: %LWAPP-3-DECRYPT_ERR: spam_crypto.c:735 Unable to decrypt LWAPP packet; AP 00:21:a0:d2:1b:be

*Oct 06 20:20:25.640: %LWAPP-3-DECRYPT_ERR5: spam_crypto.c:293 Error decrypting packet (using old key) from AP 00:21:a0:d2:1b:be (session identifier 1780a2b5)

[George Stefanick]

What is the ap model ? Just curiuos ..

[simonwynn]

LAP1242AG-A-K9

[Leo Laohoo]

Issue the command on the AP:  clear lwapp private

Delete the FULL IOS (and let the AP boot the RCV image). 

[simonwynn]

This is what I see on the console:

examining image...

*Mar  1 00:00:46.723: %LWAPP-5-CHANGED: LWAPP changed state to JOIN

*Oct  6 23:34:25.133: %LWAPP-5-CHANGED: LWAPP changed state to IMAGE

%Error opening  (Protocol error)archive download: takes 6 seconds

*Oct  6 23:34:31.132: LWAPP_CLIENT_ERROR_DEBUG:  Retransmission count for packet

exceeded more than max(IMAGE_DATA

, 1)

This all started when I had network trouble when bootingan AP...

[George Stefanick]

If this was working before and not now. I might suggest stepping down to ios and then back to lwapp

[simonwynn]

Turns out I had network disruption during a WLC firmware upgrade so the IOS image on the WLC was corrupt - just re-flashed the controller and all is fixed.

Simon