Western Digital live v. 1.04.22 reboot each 15 min

Hello, my Western Digital Live v. 1.04.22 reboots while playing video every 15-20 min one day, next day works fine…

I tried play from a local USB harddrive, USB stick, network storage, different movies, differents ways of coding… 

Anybody can give me hint what’s wrong?

I have the WDL connected throuhg HDMI to my tv.

Have you try to reset the unit?