Signal keeps dropping

Hi! I’m new to zwift so I probably won’t do this explanation justice. I have a cycleops Magnus smart trainer and a separate cadence sensor. I have an Android (OnePlus) that’s less than a year old. I open the app on my phone and then cast my screen to a TV I have in the garage so I can see the screen on a TV. I’ve started dropping the signal. I go to the in game menu and select Bluetooth and it all of a sudden shows no signal for the trainer and for the separate cadence sensor. When I’m on that screen, the signal seems to pick up and go out over and over. Any ideas? Help!!!