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CAPWAP - Failed to decode discovery response

Heitkamp
Level 1
Level 1

‎05-13-2020 07:26 AM - edited ‎07-05-2021 12:03 PM

Hi Guys!

I did a WLC (WLC 2504) Update to version 8.3.150.0 and after the update 2 of our 30 access points (AIR-AP1852I-E-K9) cannot connect to the WLC. I connected via console to the access points and get following error message:

[*05/03/2020 15:39:37.4246] Discovery Response from 192.168.219.130
[*05/03/2020 15:39:37.4246]
[*05/03/2020 15:39:37.4246] This AP model is supported by controller version newer than 7.0.0.0!
[*05/03/2020 15:39:37.4246]
[*05/03/2020 15:39:37.4246] Discovery response from MWAR ''running version 0.0.0.0 is rejected.
[*05/03/2020 15:39:37.4246] Failed to decode discovery response.
[*05/03/2020 15:39:37.4246] CAPWAP SM handler: Failed to process message type 2 state 2.
[*05/03/2020 15:39:37.4246] Failed to handle capwap control message from controller - status 4
[*05/03/2020 15:39:37.4246] Failed to process unencrypted capwap packet 0x1803000 from 192.168.219.130
[*05/03/2020 15:39:37.4246] Failed to send capwap message 0 to the state machine. Packet already freed.
[*05/03/2020 15:39:37.4246] IPv4 wtpProcessPacketFromSocket returned 4
[*05/03/2020 15:39:37.4246] Discovery Response from 192.168.219.130
[*05/03/2020 15:39:37.4246]
[*05/03/2020 15:39:37.4246] This AP model is supported by controller version newer than 7.0.0.0!
[*05/03/2020 15:39:37.4246]
[*05/03/2020 15:39:37.4246] Discovery response from MWAR ''running version 0.0.0.0 is rejected.
[*05/03/2020 15:39:37.4246] Failed to decode discovery response.
[*05/03/2020 15:39:37.4246] CAPWAP SM handler: Failed to process message type 2 state 2.
[*05/03/2020 15:39:37.4246] Failed to handle capwap control message from controller - status 4
[*05/03/2020 15:39:37.4246] Failed to process unencrypted capwap packet 0x1801000 from 192.168.219.130
[*05/03/2020 15:39:37.4246] Failed to send capwap message 0 to the state machine. Packet already freed.
[*05/03/2020 15:39:37.4246] IPv4 wtpProcessPacketFromSocket returned 4

I manually updated the version of one access point to 8.3.150.0 because I already found this bug page .

sh version
cisco AIR-AP1852I-E-K9 ARMv7 Processor rev 0 (v7l) with 967420/800844K bytes of memory.
Processor board ID XXXXXXXXXX
AP Running Image : 8.3.150.0
Primary Boot Image : 8.3.150.0
Backup Boot Image : 8.3.143.0

What do I need to do?

 

Kind regards

Heitkamp

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