I wasn't sure if I should reply to this post or create a new one, but since my question directly relates to Magic Number, I'll start with a reply question...

Is the Computer Name and/or IP Address used in generating the Magic Number? Below is more detail regarding my question...

We currently have PlanetWatch, Image, & Fax running on a Windows 7 machine, and are preparing to migrate to Windows 10, both are VM. The Win10 machine was cloned from the Win7, upgraded to Win10, the OL licenses have been transferred to the new Win10 machine, and a transition license has been applied to the old Win7 machine.

The plan for switching machines is to rename the computer name and IP address of the new machine to that of the Win7 machine, and give the old Win7 machine a new name and IP address; all DNS information will remain the same.