A password is required in order to use Client Encryption Manager (CEM) to change Wired Equivalent Privacy (WEP) keys on the Cisco Aironet Client Adapter.
The default password for the CEM is "Cisco" (case sensitive). On older versions of CEM, try the default password "Aironet" (case sensitive).
If the default password does not work, the only way to recover is to uninstall and reinstall the software.
Note: As of Cisco Aironet Client Utility (ACU) version 5.01.001, CEM functionality has been incorporated into the ACU software.
Client Encryption Manager (CEM)