Hi Plastiman, Sorry for the late reply. This kind of issue is usually caused by incorrect registry data, network configuration, or account information. I have helped you submit this issue to our online support system last week. The support team should have contacted you via email. They will help you resolve this issue. Please remember to check your inbox. You can also check the “Support Ticket” section on your account page as per following link: https://kb.reallusion.com/General/50108/How-to-engage-Support-Team Irving Reallusion
Looks like CC is checking the serial number and you lost internet connections while doing so.. Is this the full license or trial?