Question Bose QC II bluetooth headphones can't connect to PC - bluetooth works on other devices

Oct 24, 2020
I have a pair of BOSE QC II headphones that are unable to connect into a recently built PC. The headphones are able to connect to a different Windows 10 PC and an iPhone 11 Pro.

The bluetooth on the PC is able to connect a UE Boom Speaker and Xbox One controller with no issues.


  • Xeon E52689 CPU
  • Motherboard Chinese X79
  • 8gb of Samsung DDR3 1600mhz
  • Gigabyte GC-WB1733D-i
I've tried different Bluetooth drivers, re-installing windows, clearing the device list on the headphones. When searching for a bluetooth device "Unknown Device" appears twice. If you try to connect to an unknown device it won't work, occasionally an LE version of the headphones appears in the bluetooth list but still unable to connect.

Headphones don't work over USB connection, the headphones worked fine over the phone and other PC.