Had a couple of glitches. Went to the activate site and entered everything, but it never gave me a passcode. Got the confirmation email, but no code. Had to call to get that. Once entered, I did an auto start (killed utility power to the ATS) and it fired right up and transferred power. Shut down once I restored utility power.
WiFi won't set up though. Books all seem to say you should be able to so that activation would happen automatically. When I had TS on the phone, they said no, it had to be activated first.
So, now I'm not sure. Books also say a steady green LED indicates the WiFi module is locked up and mine is steady. It was flashing for a while.
I may try that again later, but it isn't necessary for standby operation as far as I can tell.