AP AIR-CAP702W can't join cisco WLC 2504

[Solanin19]

Hello everyone,

My 3 air-ap1815w-E can join the wlc 2504 controller without problem, but not my air-CAP702W.
the log from the CAP702W:

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Translating "CISCO-CAPWAP-CONTROLLER"...domain server (255.255.255.255)

Not in Bound state.

*Mar  1 01:01:35.459: %CAPWAP-3-DHCP_RENEW: Could not discover WLC. Either IP address is not assigned or assigned IP is wrong. Renewing DHCP IP.

*Mar  1 01:01:45.575: %DHCP-6-ADDRESS_ASSIGN: Interface BVI1 assigned DHCP address 192.168.15.105, mask 255.255.255.0, hostname APf0b2.e5c4.6610

Translating "CISCO-CAPWAP-CONTROLLER"...domain server (255.255.255.255)

-----------------------------------------------------------

wlc interface for the AP management : 192.168.15.254

dhcp pool: 192.168.15.0

So the ap can get an ip from the pool, and can ping the correct interface but can not discover it.

My guess is that the version on my WLC (8.5.131.0) can not support the cap702w-E (https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html) 

If i am correct i have to change every CAP702W-E by a AP1815 or is there an another solution ?

[Kasun Bandara]

can you share below command output too
(Cisco Controller) >show sysinfo

also try some lower LWAPP version for AP other than current version. try https://software.cisco.com/download/home/286250957/type/280775090/release/15.3.3-JF5

[Kasun Bandara]

country, and FUS are ok.
try some lower LWAPP version for AP other than current version. try https://software.cisco.com/download/home/286250957/type/280775090/release/15.3.3-JF5

[Kasun Bandara]

one more concern for this specific AP. can you try setting switch port mode to trunk and allow all VLANs too,

[Solanin19]

Both suggestion didn't get any result. When the interface is in trunk mode, the ap won't get any ip from dhcp and still not able to find the wlc. 

[Kasun Bandara · Accepted solution]

this is really strange. check the time on WLC again. as a last resort its better to move with cisco TAC

[Solanin19]

Thank you for your time :).