I have Intel NUC DC32171IYE, running Windows 7. And I have a USB audio interface, RME Babyface. When I try to listen to sound through RME Babyface, for example when playing a YouTube video, everything works fine until suddenly the sound stops. Usually this happens when I load up the next YouTube video. When the sound stops, there is still volume bar movement in the Playback tab on systray's Windows Sound application. But the video slows down considerably (very small framerate) and that's a sign of a major problem. No effect on CPU usage though (low % in Task Manager Processes even audio has stopped and video is choppy).
Then I have to unplug the Babyface USB and plug it in. Sometimes it starts playing again, sometimes not. The Babyface and the computer are both new, so most likely no faults in cables or ports. I went through all Windows 7 "Edit power plan" settings, couldn't make any difference. I also switched off "Intel Dynamic Power Technology" in BIOS. Made no difference.
There is a secondary USB cable on Babyface to ensure enough power from USB but that does not help. I don't think the problem is due to USB not giving enough power. There may be some kind of hardware compatibility problem that kicks in semi-randomly (and randomly prevents Babyface from ever starting correctly upon connection). Babyface is designed to be used with mobile setups so it definitely should work with Intel NUC!
What can I do to fix/troubleshoot this?