There's a flaw in the QDX firmware that causes the QDX to not be recognized by Windows if the QDX USB plug is inserted when the QDX is powered on.
You might need to plug in the QDX first, then power it on, then start JS8Call.
I realize you said you saw the QDX listed in audio devices, but you may still be having a problem with the above flaw in addition to a problem with when to start JS8Call. In other words, sequencing is important.
I had to play around with the sequencing of plug, power, and program to get it to work.
I've tried to let Hans know that this flaw is a failure point for those of us with Windows, just one more thing you have to get right before everything works. I think he might find a way to fix this in the future.
73
Andy
WM8Q
