I'm having the same problem. Downloaded the configurator and plugged in from my MacBook Pro to the DTK through USB-C, but just the chimes. It never shows up as a device in the configurator.
Also, the keyboard doesn't seem to be giving any interrupts to the computer. There is no response to Command-R while rebooting. It is as if the keyboard (USB-A) was not plugged in.
I've unplugged the box for now.