Found solution on another forum:
Regedit > HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class{e0cbf06c-cd8b-4647-bb8a-263b43f0f974}\0000 > New "String Value" > Name it PnPCapabilities and set value 24.
Restart your computer. Viola!
I think it sets the Bluetooth device to never go into sleep mode, so may affect your battery life.