Default Latest Version of Splashtop THD won't stay connected

I recently purchased the Shield and am loving it so far, but trying to get Splashtop to work is driving me nuts.

I demoed version 1.1.0.7 of Splashtop GamePad THD and it works flawlessly. It connects instantly and stays connected for hours at a time with no problems. After seeing how well the app worked, I borrowed a compatible device from a friend (I only own the Nexus 4 and Nvidia Shield), put in my Google account information, bought the app and side-loaded the APK of version 1.1.2.1.

I got this latest version of the app all set up, with the fix for xbox 360 controller and it does work great. The controls are awesome, it doesn't lag at all and games are perfectly playable. The only problem - It disconnects within 5 minutes of start up every time.

I can downgrade the app back to 1.1.0.7 and it instantly goes back to staying connected for hours at a time. Nothing else has changed. Any ideas on how I can fix this?

Are any of you Shield owners successfully using Splashtop Gamepad THD 1.1.2.1?