Spirit System

Never before have I had connection problems with the Spirit unit connecting to the computer ,
now it does not work with new version on any of my W10 computers ,
Unit is not seen by PC ? already uninstalled and reinstalled new Spirit software a few times, I don't get it

You can try to start it as Admin.
Also you can try to turn off Bluetooth in your computer.

It works on my RS unit , but not on the GTR unit ?

Then it seems problem is in the GTR unit, not PC connection.

What the Status LED is doing when you power up the unit?