Now, I think the controller is bricked. All the LEDs on the front are now off. The blue and green lights inside the controller are solid ( ie: not blinking). I can't see it in my browser anymore. I can't reset it to default with the reset button.

So after 7 weeks and a few days of perfect functionality, my S7 is not working after an overnight internet outage of about 3 hrs.
 ( Note: there was an internet outage of about 30 mins a month ago. It didn't affect my S7 then. So, it seems if there's a longer internet outage, it messes up the controller or its memory.)