Sound good. The Udisk port is only good for a memory stick. I run the Ethernet. I thought it was a test of the drivers to be able to run RDWorks but I’m not sure. I don’t run either.
You are right to upgrade, you won’t regret it as soon as we get you connected. Still on Windows 7 
On the right bottom of the Lightburn screen is the Laser window. On it is the ‘Devices’ button and next to that is the type of device you are connecting to.
What device is selected?
You might want to go through the Lightburn Device setup.