Recently when installing an AP 810 the SSID of the device totally disappeared. This occurred during set-up. I disconnected device from power but the SSID never came back. I logged in to double-check settings and "enable wireless" was ticked.

I got a second 810 which I had in my car and installed that which had no SSID problems.

Testing the first 810 back in my office - the SSID transmitted just fine again.

Anybody guess why would the SSID of a Draytek AP just disappear like that?