9130 AP to 8540 controller fail

[jtpntx]

Have tons of 9120's on the 8540 but the 9130 AP doesn't make it past the Discovery. I haven't gotten a hit yet on a search.

[*10/20/2022 17:55:58.7157]

[*10/20/2022 17:55:58.7157] CAPWAP State: Discovery

[*10/20/2022 17:55:58.7164] Discovery failed 7 times. Check Release/Renew DHCP. is_ap_in_capwap_mode:[1]dhcp_renew:[0]

[*10/20/2022 17:55:58.7165] Discovery failed. dhcp_renew being set to true

[*10/20/2022 17:55:58.7169] IP DNS query for CISCO-CAPWAP-CONTROLLER.redacted

[*10/20/2022 17:55:58.7187] DNS resolved CISCO-CAPWAP-CONTROLLER.redacted

[*10/20/2022 17:55:58.7188] DNS discover IP addr: 10.0.21.248

[*10/20/2022 17:55:58.7234] Discovery Request sent to 10.0.21.248, discovery type DNS(3)

[*10/20/2022 17:55:58.7253] Discovery Request sent to 255.255.255.255, discovery type UNKNOWN(0)

[*10/20/2022 17:55:58.7260] Discovery Response from 10.0.21.248

[*10/20/2022 17:55:58.7261] Discovery response from MWAR 'THING-13' running version 8.10.171.0 is rejected.

[*10/20/2022 17:55:58.7261] Failed to decode discovery response(status = 4).

[*10/20/2022 17:55:58.7261] CAPWAP SM handler: Failed to process message type 2 state 2.

[*10/20/2022 17:55:58.7261] Failed to handle capwap control message from controller - status 4

[*10/20/2022 17:55:58.7261] Failed to process unencrypted capwap packet 0x55b32d8000 from 10.0.21.248

[*10/20/2022 17:55:58.7261] Failed to send capwap message 0 to the state machine. Packet already freed.

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[Mark Elsen]

 - Verify controller-model(+current software-version) versus ap model used here : https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html

 M.

[balaji.bandi]

check the compatable matrix :

https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html

what code AP shipped with ?

is the AP in same LAN brodcast domain ?

[Rich R]

When were the APs manufactured?
Have you read https://www.cisco.com/c/en/us/support/docs/field-notices/724/fn72424.html ?
Most likely you need to upgrade to 8.10.181.0 but before you do check https://bst.cisco.com/bugsearch/bug/CSCwd37092 - you might need to enable TCP MSS adjust 1250 before you upgrade.

[Arshad Safrulla]

If the AP doesn't match the conditions listed in the FN shared by @Rich R  please follow the below

What is the code you are running today? What is the code running in the AP? Did you try by having both WMI and AP management in the same VLAN?

Did you try hardcoding the WLC WMI IP in the AP?  "capwap ap primary-base <WLC hostname> <WMI IP>"

[jtpntx]

Updated the IOS on the 8540 and it's all good

[balaji.bandi]

Glad that all good, sure we believe the same somewhere code matching issue.