Bluetooth headset unavailable as output audio device (even though it does successfully connect)

I have a Bluetooth headset that worked without issues with my Windows 11 machine up until recently. However now for reasons unknown the headset has completely stopped playing audio from my Windows 11 machine. When I turn on the headset it still immediately appears as a connected Bluetooth device in Windows Bluetooth and Devices Settings (see screenshot below).



The headset is however completely missing from the audio output devices that I can select from in Windows Audio Settings. Only the machine's built-in speakers (local language "Luidsprekers") are listed as an audio output device (see screenshot below).



And when I try the option "Add device" (local language "Apparaat toevoegen"), then the Bluetooth headset also doesn't appear in the list of devices that I then get.

I have already tried removing the headset as a registered Bluetooth device and then repairing it, but this did not resolve the issue.

Lastly the Bluetooth headset in question is right now still working just fine when I connect it to my Android mobile device.

Does anyone here have any advice?

Note: in my screenshot the volume level is set to zero, which I realise now is a bit confusing. However I tested the headset before with the volume level fully turned up, and also did the same again right now just to be fully certain. And the result remains that there's no audio playback from the headset, and that all sound only comes from the machine's built-in speakers.

Please open Device manager and find your Bluetooth device.

Open Properties of the device and switch to Power Management tab.



Uncheck "Computer must turn this device off to save power" checkbox.

Open Services console and find Bluetooth Support Service.

Put this service on Automatic. It comes on Manual (triggered) as default.



After these changes, restart your notebook and see if you have made any progress.

Hope this helps.