Hi,
We are having an issue where our AP will not join any of our Wireless LAN controllers.
Console output shows;
[*01/18/2019 15:05:13.3086] CAPWAP State: Discovery
[*01/18/2019 15:05:13.3088] Got WLC address 172.16.1.5 from DHCP.
[*01/18/2019 15:05:13.3088] IP DNS query for CISCO-CAPWAP-CONTROLLER.ourdomain.com
[*01/18/2019 15:05:13.3124] Discovery Request sent to 172.16.1.5, discovery type DHCP(2)
[*01/18/2019 15:05:13.3126] Discovery Request sent to 255.255.255.255, discovery type UNKNOWN(0)
[*01/18/2019 15:05:13.3137] Discovery Response from 172.16.1.3
[*01/18/2019 15:05:13.3137] Discovery response from MWAR ''running version 0.0.0.0 is rejected.
[*01/18/2019 15:05:13.3137] Failed to decode discovery response(status = 4).
[*01/18/2019 15:05:13.3137] CAPWAP SM handler: Failed to process message type 2 state 2.
[*01/18/2019 15:05:13.3138] Failed to handle capwap control message from controller - status 4
[*01/18/2019 15:05:13.3138] Failed to process unencrypted capwap packet 0x26fc000 from 172.16.1.3
[*01/18/2019 15:05:13.3138] Failed to send message to CAPWAP state machine, msgId 0
[*01/18/2019 15:05:13.3138] Failed to send capwap message 0 to the state machine. Packet already freed.
[*01/18/2019 15:05:13.3138] IPv4 wtpProcessPacketFromSocket returned 4
[*01/18/2019 15:05:13.3139] Discovery Response from 172.16.1.4
[*01/18/2019 15:05:13.3139] Discovery response from MWAR ''running version 0.0.0.0 is rejected.
[*01/18/2019 15:05:13.3139] Failed to decode discovery response(status = 4).
[*01/18/2019 15:05:13.3139] CAPWAP SM handler: Failed to process message type 2 state 2.
[*01/18/2019 15:05:13.3139] Failed to handle capwap control message from controller - status 4
[*01/18/2019 15:05:13.3139] Failed to process unencrypted capwap packet 0x26f6000 from 172.16.1.4
[*01/18/2019 15:05:13.3139] Failed to send message to CAPWAP state machine, msgId 0
[*01/18/2019 15:05:13.3140] Failed to send capwap message 0 to the state machine. Packet already freed.
[*01/18/2019 15:05:13.3140] IPv4 wtpProcessPacketFromSocket returned 4
From the log it looks like a version mismatch - https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html
The compatibility matrix shows that version 8.2.110.0 is supported and the AP is running 8.5.135.0
cisco AIR-AP2802I-E-K9 ARMv7 Processor rev 1 (v7l) with 1028584/672912K bytes of memory.
Processor board ID XXX
AP Running Image : 8.5.135.0
Primary Boot Image : 8.5.135.0
Backup Boot Image : 8.3.143.0
2 Gigabit Ethernet interfaces
1 802.11 Radios
Radio Driver version : 9.0.5.5-W8964
Radio FW version : 9.1.8.1
NSS FW version : 2.4.24
Could somebody point me in the right direction?
Thanks