Never had this happened, but these are wireless signals, and involve computers. I assume you've unplugged your DAC, waited 30 seconds and turned it back on??
Also, sometimes some devices are just over rated for heat. That is, they get over heated too easily, either due to over use, or bad location or weather. Keep this in mind as you trouble shoot.
Also, sometimes some devices are just over rated for heat. That is, they get over heated too easily, either due to over use, or bad location or weather. Keep this in mind as you trouble shoot.