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AIR-AP2802E-G-K9 unable to join WLC 5508

Dear All,

We received new APs which are unable to contact to WLC. previously tha version was 8.2.121.14 and we upgraded the WLC firmware as per the recommendation of Cisco TAC to 8.2.131.40 and still we are getting same reponse on console when we try to connect AP to WLC:

This AP model is supported by controller version newer than 8.2.102.2!
[*08/24/2016 03:41:46.6241]
[*08/24/2016 03:41:46.6241] Discovery response from MWAR ''running version 0.0.0.0 is rejected.
[*08/24/2016 03:41:46.6241] Failed to decode discovery response.
[*08/24/2016 03:41:46.6241] CAPWAP SM handler: Failed to process message type 2 state 2.
[*08/24/2016 03:41:46.6242] Failed to handle capwap control message from controller - status 4
[*08/24/2016 03:41:46.6242] Failed to process unencrypted capwap packet from 172.20.3.100
[*08/24/2016 03:41:46.6242] Failed to send capwap message 0 to the state machine. Packet already freed.
[*08/24/2016 03:41:46.6242] wtpProcessPacketFromSocket returned 4
[*08/24/2016 03:41:56.1240] CAPWAP State: Discovery
[*08/24/2016 03:41:56.1254] DNS resolved CISCO-CAPWAP-CONTROLLER.ptml.pk
[*08/24/2016 03:41:56.1254] DNS discover addr: 172.20.3.100
[*08/24/2016 03:41:56.1255] Discovery Request sent to 172.20.3.100 with discovery type set to CAPWAP_DISCOVERY_TYPE_DNS(3)
[*08/24/2016 03:41:56.1255] Discovery Request sent to 255.255.255.255 with discovery type set to CAPWAP_DISCOVERY_TYPE_UNKNOWN(0)
[*08/24/2016 03:41:56.1264] Discovery Response from 172.20.3.100

Thanks in advance!

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