Looks like I have the same issue. As long as the buds are in the case and it is open, they are connected to my PC. Mic works, audio does not. If I put them on, I have no sound and after some 30 seconds the device disconnects from my PC. Buds work OK on another PC I have. I already did everything posted above with no luck. 7800×3d on Asus Rog Strix B650E-E with integrated BT. Win 11 Pro 23h2