@RainHusk - the number after the “Rachio-” is the serial number (the last part of the MAC address if I remember correctly). If the app says “Controller offline” then the controller isn’t connecting to the Rachio servers. If there is WiFi at the location where the Rachio is installed and that WiFi isn’t blocking ports, etc. then I might do a WiFi reset on the controller and re-connect it with the WiFi.
