It sounds like your RC2 is failing to get internet access,
Not sure what you mean by this, but here are my suggestions apologies if its something you have already tried.
To access Your internet connection swipe down from the top of the screen...
Still have all my old drones, ok i did collect a few more just for the hell of it, and yes they all work fine I also have the Mavic pro 1, the Mini 4 Pro and a Tello☺️;):p:p