Channels DVR app loosing connection

I am using an Amazon Fire Tablet running the Channels DVR client app.

My Channels DVR server is running on an Ubuntu server.

The Fire tablet sits on my desk streaming a live feed from my security camera 24/7.

99% of the time it works fantastic.

Unfortunately, once a day almost every day the app looses connection.

I have to manually touch the screen to reconnect the app.

Any ideas on how to fix this so I don't have to manually get the app going again.