We have an issue where APs not joining WLC. AP is 3500 and WLC is 5508. When we do a manual registration,we do not have any issues. However, this is not happening automatically. I cannot ask the customer to go for manual way, since he has around 70 APs. The APs and WLC get IP from an external DHCP server. All APs are able to ping the WLC and vice-versa.Any idea on this,
You did not answer if you have created a DNS entry for the 55008 controller. I advice that you create a local host entry, cisco-capwap-controller on DNS with the controller management IP. Also you would need to enable Option 15 in the dhcp scope and type in your domain name. This method will guarantee the AP getting a response from the controller. Don't be keen on Option 43 working in a domain.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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