Tacx flow pauses randomly and won’t restart

Since I purchased the TacX Flow I will be riding with it connected to the TacX training app and it will randomly pause.  I have to exit the app to get it to restart the ride.  I tried using airplane mode with only wifi and Bluetooth, no difference.  Restarting/unplugging the power sometimes works but it pauses again.  WiFi signal is strong but cell signal where I use it is weak.  Doesn’t matter if I only use the trainer, if I connect to my tv or use the heart rate monitor.  No changes.  Yesterday a new wrinkle jumped in where my bike on the app sped up to 130 mph even when not pedaling.  Rides also just disappear.

is this an app issue or a connection issue (WiFi/cell/bluetooth)?