Hi Pete,
You probably need to reinstall a USB midi driver on your PC.

Yamaha USB Midi driver should work in Windows for GM midi but would not install in Windows 11. The better (includes audio) USB driver from Steinberg installed and connected my Yamaha piano.

Last edited by Garth Bird; 12/12/21 12:10 AM.

Windows 11 i5 Laptop PC, Raspberry Pi4B 8gb running Linux and Windows 11. BB2022 Ultraplus. Sonar. Yamaha DGX 660 piano. Audacity. Irig Keys Controller.