@temp_tp_QA 

Hi,

Note that the Bluetooth of the Archer TXE72E is a USB device.

Make sure you have correctly connected the special cable that should have been included in the retail box to a USB connector on your PC's motherboard.

  @woozle I'll double check the connections are secure. Is it correct to connect it to a USB 2.0 header on the motherboard? The set up guide suggested F_USB but that's taken by the case power button.

  @woozle I've double checked and everything is connected securely, adpater -> USB 2.0 header

  @temp_tp_QA 

The USB connectors don't need to be specifically labelled "F_USB". Any 9-pin USB motherboard connector will do, like the blue ones visible in the picture below.

Some motherboards allow the on-board USB connectors to be enabled or disabled in the BIOS setup. Perhaps verify they are indeed all enabled.