If it works by unplugging/re-plugging the cable, I wouldn't suspect the RR2160's USB port. That would seem like it's putting out the 5 volts. I would suspect the USB cable or the 4 pins being oxidized, either on the cable or the port.
Try plugging in and out several times and leave it plugged in. That will scrape the pin contacts together and remove any surface oxidation.
Then turn the RR2160 off and back on and see if they power up together.
It's time to hit "send", and leave.
Main HT <> 976 <> 7200 <> Ultra-X12 <> sapphire ST2 mkII RF/LF <> sapphire SC center
sapphire ST2 mkII SBR/SBL <> sapphire SS SR/SL <> Lava over the air converter/DVR <>
Lava HD-2605 Ultra 150 mile antenna <> Vizio E70U-D3 70" LCD <> Oppo UDP-203 <> Amazon 4k Fire TV