Controller offline, can’t reconnect to Wi-Fi

In your other thread, it appears that you have at least two devices in the path (Comcast modem and Google Wi-Fi). Confirm that all have been rebooted.

Wow, I’ve not heard of this before.

IMO, there are two likely possibilities:

  1. The app is failing to send the network parameters to the controller.
  2. The controller is failing to even attempt to access the network with the parameters received.

On your phone, in the list of Wi-Fi networks, do you see a network Rachio-xxxxxx (where xxxxxx is the last 6 hex digits of the controller’s MAC address)? If not, try from another device. For this purpose, an old phone without a SIM or a tablet without cellular is fine, as long at it can connect to Wi-Fi and install the app. Or, try a laptop (Windows, Mac or Linux are all ok).

If nothing shows the Rachio-xxxxxx network, try resetting Wi-Fi again and if no luck, try a factory reset. Once the Rachio-xxxxxx network, try the app again. If no luck, try from a different device. If still no luck, see

If you get past quadrant 2 blinking but it’s not completely connected, post details including current light codes.