Well, my chanting didn't work. I was watching the news this morning on DirecTV and switched back to the PC and no audio again. The speaker icon in the system tray has an X and says "No audio device installed". As before a simple reboot fixed it. There is nothing to click on or off or configure in Device Manager, anything to do with audio is blank because when this happens. Same thing with the Troubleshooter app. It runs for a couple of minutes and comes back with no audio device installed so I need to install one. After the reboot it shows "Digital Audio (HDMI) High Definition Audio Device" installed.

My best guess and that's all it is, a guess is it's something to do with this being a Ryzen system similar to the incompatible hardware issue AMD had with Win 11 installations a few months ago.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.