Software liscense not reconiged

[colin]

There is a chance that your license was upgraded to 2019. If it was, then adding your 2019 license to the new machine, with 2019 installed, would be the easiest solution.

I can’t find a license for you under your name or the email address you use in the forum. What other name or email address might it be listed under?

For the no Internet part of the problem, see this topic I posted:

SketchUp (desktop version) thinks you don't have an Internet connection

Since about a month ago there has been an increase in the number of forum posts and support requests, where SketchUp is showing a message about how you need to have an Internet connection to do that feature. The features affected would include Add location, Generate Report, 3D Warehouse, and Extension Warehouse. It also would prevent you from being able to add a Classic license, or use an existing Network license. Some extensions may be affected too, if they rely on having an Internet connection…