My apologies if this has already been addressed, I searched and couldn't find anything.
After connecting my DK2 to my computer the unit turns on, the power LED going orange then immediately blue and my machine picks up a new displays and refreshed the display as expected. About five seconds later the unit turns off and my display refreshes again, the DK2 no longer appearing. Unplugging the USB cable form the DK2 itself and plugging it back in repeats this. I've tried another USB slot on my machine, as well as another USB cable.