Apple TV Keeps Disconnecting (Phone/iPhone/iPad/Mac/Laptop)
If your iPhone will not disconnect from your Apple TV, you can try a quick fix that should be able to disconnect your iPhone from the TV. You will first turn off your iPhone and allow it to completely shut down. Once the screen is totally black, turn your phone back on and try again to ensure AirPlay to connect back to your TV. Once it has connected, turn your iPhone off again which should disconnect the device.