According to this your serial number will appear automatically in XKey Plus.

https://xkeyair.com/join-xkey-community/

Since it doesn't show and your computer can't find it I wonder if the Xkey isn't getting enough power from your USB port. If possible I would connect the XKey to a powered USB hub. If what I surmise is the problem this should correct it.


I arrived early to a restaurant.
The manager asks, "do you mind waiting a bit?"
I said no.
"Good", he said. "Take these drinks to table 3"

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware