Just starting out here with a uc520. I have been unable to enable the built in wifi. I am also attempting to enable wep through the configuration assistant. If I add it, save it, close the window and go back, the security configuration is missing and it says "No security" again. Any tricks to get the wifi enabled?
Indeed it appears to be a wireless P/N, but the radio interface is missing in the configuration.
I don't have an UC5200 to compare, but something seems strange. Suggest you contact TAC as you might need an RMA, even if just a board inside got loose, you may not want to open it due to warranty issues.