There is no password recovery option on the Wireless LAN Controller (WLC). You need to set the WLC to factory defaults and reconfigure it. In order to set the WLC to factory defaults, power cycle the WLC, press ESC Key during the boot up process from the console and select last option(5) to clear the configuration and reboot the Wireless Lan Controller. For more information on how to clear the configuration on the WLC, refer to the Clearing the Controller Configuration section of Managing Controller Software and Configurations.
Prior to version 5.1, there is no password recovery option on the Wireless LAN Controller (WLC). You need to set the WLC to factory defaults and reconfigure it.In order to set the WLC to factory defaults, power cycle the WLC, press ESC Key during the boot up process from the console and select last option(5) to clear the configuration and reboot the Wireless Lan Controller. But starting WLC version 5.1 , you can setup a new username and password on the WLC without clearing the configuration. For the detailed procedure refer the Restoring Passwords section of WLC configuration guide 5.1.
Note:The new default username and password is "admin".
