Mac OSX Only
If a user has disabled/avoided using any Firewalls or Proxy servers on their network, but are still unable to activate Vectorworks on their current network connection, in some instances this will correct the problem:
1) Close Vectorworks if it is still open displaying the Activation error.
2) Under Apple > System Preferences > Network > Advanced, uncheck the option for: Use Passive FTP Mode (PASV)
3) Launch Vectorworks and click "Activate"
Edited by JimW