My Traktor S4 MK3 DJ controller is having a problem with the the tracks randomly stop playing.  No sound, jog wheels lights go off and no spinning and can't load a new track. It started with B but now A too. I have to quit Traktor and when I restart the controller is working again...until it happens again.   Started a few weeks ago and continues to occur.I don't know if it's the Controller or Software. 
 I can't use till fixed obviously.  The first time I had to finagle using A/C…now I to find solution.  NI help desk is all automated and not supplying solutions.  Thanks