To install Vectorworks, activate a license for the first time after installation, or to install many of the older updates; the user MUST be connected to the internet. There is no way around this, and an internet connection is listed on the Installation Requirements.   Firewalls: These URLs should be added to any FireWalls safe lists:   activation.vectorworks.net connect.vectorworks.net installer.vectorworks.net notify.vectorworks.net release.vectorworks.net api