Unable to validate serial number - Lightroom 6.14

I'm in the process of upgrading from MacOS Mojave to Maverek, but before doing so I wanted to create a virtual machine (running Mojave) to have continued access to the Lightroom catalog I have (just over 100,000 images).  

I created the virtual machine, installed CS6 (Photoshop) and went to install Lightroom 6.  I was advised mine was an upgrade and it could not find a previous version.  I installed Lightroom 5 - everything went fine, and then proceeded to install Lightroom 6.  With Lightroom 6, I get stuck at:  Serial Number Validation Please connect to the internet to validate your serial number.

When I start Lightroom I get:  Sign In Required:  this works fine.

Next:  Access License Agreement:  OK

Next: Serial Number Validation: never able to validate??

I checked access to the activatin servers and everything checks out, but I cannot get passed the Serial Number Validation screen.

Careeese said: in terms of activation number you're all set and should not run into any issues regarding seats avaliable.