Rachio 3 Not Connecting After Power Outage

Have a Rachio 3 that has been working perfectly until yesterday’s power outage. I tried several of the suggestions here:

  1. Press the reset button to re-establish wifi connection
  2. Unplug and plug it back, press reset button and try to establish wifi connection
  3. Delete controller from IOS app
  4. Delete IOS app and re-install

I’ve tried all of the above and now I’m just getting 3 solid white lights on the first 3 quadrants and a white blinking light on the 4th quadrant. App is stuck on Adding Controller to Wifi network…

I don’t know what else to do. Can someone please help? Did the controller die after the power outage yesterday?