I’m using Ardour 9.2 with Windows 11. Each time I attempt to open a project, or start a new one, I get the following error message.
“Failed to register audio/midi ports”
Do you get the Audio/MIDI setup dialog when Ardour starts, where you can select which driver and device to use?
If so what settings did you select?
If not, you can open the dialog from the first selection under the Window menu to verify which audio device Ardour is attempting to use.