Hi Brad,
No, I am not trying to use both the applications at the same time.
I attached the keyboard on Windows 10 system, it automatically downloaded a USB midi driver. Then I launched the Casio Data Manager and I was able to connect to the keyboard. On my Mac, however, it keeps showing <disconnected>. Am I missing a driver or something?
Attaching the screenshot images of both instances.
Regards
Pankaj