Issue with new Denefrips Pontus

I just unpacked the DAC today and put it in my system and when I plug it in all of the LEDs light up then I hear a click and it shuts down. I tried unplugging the unit and plugging it back in and some times it does the same thing and other times all of the LEDs stay lit but none of the buttons function. Anyone come across this issue. I emailed Denefrips.