Been a while since I have conf'd a controller. Can someone confirm or put me on the right track how to do it?I believe its WLAN/edit/security/layer2 and below psk format edit the password?

My client is running CIPC 7. something. The CUCM is 7.3The PC's are running win 7 32 bit.2-3 Times a day the phone get frozen. If they try to access any soft button they get "that key is not active here".They are unable to pickup any calls or do anyt...