Windows 10: Upgraded to windows 11 and now my audio output will not work at the same time as my input

This is an odd one. I use a Tascam US-1641 audio interface and have done for years. I've recently done a clean install of windows 11, coming from windows 7 yes I'm stubborn. I downloaded and installed the windows 10 audio drivers for this device from the vendor's website and all appeared well at first. If I go to:Sound Settings > Speakers Tascam US-1641 and hit "Test", I can hear the test sounds. If I then navigate to Sound Settings > Line in Tascam US-1641 and speak into my microphone that is plugged into the audio interface, I can see the level going up and down in response to my

:)

 

No audio input or output devices found

After the last update of Windows 10, no audio devices are listed

Searching in the device manager: all audio devices say it works fine

The sound setting says: no output or input devices were found.

 

No Audio Input or Output Devices found

After latest windows 10 update no audio devices are listed/

Looking in device manager - the audio devices all say working OK

But on bar at bottem of screen get speaker with red cross -- Playing audio - Audio trouble shouter cannot find any problems ..

Sound settings say - No output or Input devices found.

Have tried to re-install Realtek audio drivers for motherboard -- installed but no change

 

Input and Output of audio on computer?

Input and Output of audio on computer?