I got my timberline 850 to connect to yhe app with a new controller. U can read my issues above, but basically I could not get the app to recognize my controller, which was on WiFi, I couldn’t get the controller to forget my WiFi so I could pair again. and I could not do a controller reset (menu, about this grill, then hold down the ignite button till you see the splash screen. I still can’t reset, but by turning off my home WiFi I did get the controller to forget my network nd allow me to re pair. It’s working now. The new controller showed up with software 3.0.0.0