This is a new wlc installation on the network that already has fucnitonal wlc. I would like to introduce secondary controller for redundancy. Setup dhcp option 43 on router' DHCP server for secondary wlc but when AP trying to join to the new controller, the bellow messages appers.
Any troubleshooting idea would be appreciated.Thanks
Here is output of the debug
(Cisco Controller) >debug capwap info enable
(Cisco Controller) >*spamApTask7: Jan 31 21:22:13.002: 00:00:00:00:00:00 DTLS keys for Control Plane deleted successfully for AP 10.10.10.4
*spamApTask7: Jan 31 21:22:13.003: 00:00:00:00:00:00 DTLS connection closed event receivedserver (2.2.2.2/5246) client (10.10.10.4/4153)
*spamApTask7: Jan 31 21:22:13.003: 00:00:00:00:00:00 DTLS Connection not found for 10.10.10.4:4153
*spamApTask7: Jan 31 21:22:13.003: 00:00:00:00:00:00 No entry exists for AP (10.10.10.4/4153)
*spamApTask7: Jan 31 21:22:13.003: 00:00:00:00:00:00 Finding AP in database
*spamApTask7: Jan 31 21:22:13.003: 00:00:00:00:00:00 No entry exists in database
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 length = 4, packet received from 0:0:0:0:0:0
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 Discovery Request from 10.10.10.4:4154
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 Discovery request: Total msgEleLen = 94
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 Discovery Type = DHCP
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 Discovery request: Vendor payload type = 207, length = 10
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 Discovery request: Vendor payload type = 5, length = 17
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 Join Priority Processing status = 0, Incoming Ap's Priority 1, MaxLrads = 250, joined Aps =0
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 msgLength = 36
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 encodeLen = 122 len = 16
*spamApTask0: Jan 31 21:22:13.606: 00:00:00:00:00:00 Discovery Response sent to 10.10.10.4:4154
*osapiBsnTimer: Jan 31 21:22:13.953: 00:21:a0:51:5d:80 Wait join timer expired for connection 10.10.10.4:4153
*spamApTask7: Jan 31 21:22:13.953: 00:21:a0:51:5d:80 Disconnecting due to a wait join timer expiry event for (10.10.10.4:4153) server details (2.2.2.2:5246)
*spamApTask7: Jan 31 21:22:13.953: 00:21:a0:51:5d:80 DTLS Connection not found for 10.10.10.4:4153
