Well that’s it. I give up!
I thoroughly removed all traces of the first install and reinstalled with Administrator rights. Same result.
The “Register Now” dialog box again timed out an did not connect with the registration server.
A check of Windows 10 Pro’s Task Manager shows that it is “Not Responding” AND is using almost 25% of my CPU!!
So this is definitely a bug in the developer’s program.
Bub-bye now.
Deleting the software.