Showing posts from May, 2011

Cisco Wireless AP - LWAPP: How to Recover an AP from Mis-Configuration

I am quickly learning Cisco Wireless. I had a problem with a Cisco LWAPP AP located at a remote office. This AP had not previously registered with a Wireless LAN Controller (WLC). We rely on the DNS discovery method where the AP boots up and does a DNS lookup for CISCO-LWAPP-CONTROLLER or CISCO-CAPWAP-CONTROLLER.

Well this is were the fun began. IP address and name-server was manually configured in the AP, but the name-server IP address was fat-fingered. The APs will save their IP and LWAPP configuration automatically. On a reboot, the AP came up with the same configuration. I was finally able to restore the configuration to factory default and have it discover and join the controller.

To do this a console connection to the AP is required. I had a user at the remote office connect a console cable to a notebook and let me RDP in..

1) I need to clear the static IP address settings, convert to DHCP, and have the AP connect to the WLC. With LWAPP/CAPWAP APs, you can't just go into the…