I have a QU16 running firmware 1.97. It’s connected via USB to a computer running Windows 10.
Frequently, after a fresh power up, the computer does not recognize any sound devices, so any kind of playback fails. A shutdown and restart of the QU16 often solves the problem, but sometimes it takes two or three restarts.
No issues with any other USB devices. Any troubleshooting suggestions would be appreciated.