The issue is to do with the AP version.The new AP shipped with a version 14.something, all the other APs and the one you tested with are 15.2.Manually upgrading the AP to 15.2 then allowed it to try the external IP, fail and try the internal IP as ex...

I'm running 7.4.100.60 on the WLC5508.Output of the new AP booting and not joining is..*Sep 25 13:51:16.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: x.x.x.x peer_port: 5246*Sep 25 13:51:30.000: DTLS_CLIENT_ERROR: ../dtls/dtls_con...

I have the same problem except the new Local AP I'm trying to add is in the same subnet as the WLC management interface.  I can't remove the NAT config because there are still OEAPs in use."AP Discovery - NAT IP only" is already disabled on the contr...

Thank you for your advice.I have done some playing around and have found the solution to my problem, hopefully it will help the others as well.The issue seems to be the format of the final PEM file being uploaded.The controller seems to be expecting ...

I am also having exactly the same issue with a certificate from Thawte.  I followed the unchained guide and have tried both with and without a password in the initial step key generation step, requesting a new cert each time. As with Jeensernchew's i...