Vive controller stops tracking about 15 minutes into gaming session

[NickFlightX]

Hello,

 

I just got a vive, and one of my controllers has a problem. About 15 minutes into the gaming session, one of the controllers will stop tracking. It is always the same controller and can only be fixed by restarting Steam VR. When this happens, the green light is still on on the controller, and one the desktop, I can see on the of the controllers is green but flashing. I have tried fully charging it, and setting the sleep time to never. Any help is appreciated!