Kegbot disconnects despite saying controller online

Our kegbot android seems to go dead overnight and even though it shows controller attached it does not pickup pours. Either unplugging and plugging in the usb on the tablet or relaunching the app fixes it. Has anyone encountered this? has anyone found a solution?

Encountered it, but I have no solution. The problem is beyond me.I believe Mikey is aware of the issue, but I am not sure if he has a fix yet.