WLC 5508 DNS discovery fails. After a ping it works!

[Stefan Sawluk]

Hello guys,

I have a deployment with a 5508 HA Cluster. The AP´s (2702) should be discoverd with DNS. I get only the message:

%CAPWAP-3-DHCP_RENEW: Could not discover WLC using DHCP IP. Renewing DHCP

When i Ping the Controller:

ping cisco-capwap-controller

​The AP gets discovered. I tried this with 3 AP´s. Every time the the same behavior.

Does anybody know that?

Regards Stefan

[Rasika Nayanajith]

Hi Stefan,

I would configure DHCP option 43, in that way AP will get WLC info as part of DHCP assignment,

http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/97066-dhcp-option-43-00.html

HTH

Rasika

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