NAD M33 unexpected reboots

Oh boy! I just thought I’d somehow overcome this rebooting thing as it has not happened for a while now…until just now. Have not changed a thing, just powered on the M33 and within a few minutes it rebooted again.
Back to square one.
Damn!

@Hans3d Can you check your Antennae/Cable that is coming in? This could be the problem.
In my system, I initially had a HUGE buzz/humm, and it narrowed down to the “cable TV” cable coming in my house and it was carrying huge amount of noise and potential.
I solved it by grounding the shield of that cable: connected a wire to the shield of the cable, and ran it to the ground in the nearest power outlet.
Problem solved.

Edit: justo to explain more: the ground difference was propagating to my processor and amp via the HDMI coming form the TV, and it is a Samsung TV like yours.

We have discussed grounding in his system. In your case it sounds like the installer has not properly installed a ground at the demarcation box/coupling where it enters your home. Could be loose or installer wasn’t on point.