Hi Alanrosier!
Answer extract from microsoft support
http://support.microsoft.com/kb/822519"This issue may occur if you configure your Internet connection to use a proxy server that requires authentication. When the Activation Wizard cannot connect through the proxy server to an internal Microsoft server to transfer your installation ID to Microsoft, you receive an error message.
Alternatively, this issue may occur if your firewall software is blocking the attempt to connect to the server through your Internet connection. When the Activation Wizard cannot connect to an internal Microsoft server to transfer your installation ID to Microsoft, you receive an error message."
To work around this issue, try the following 3 methods. that microsoft publish in the article
http://support.microsoft.com/kb/822519Best regards
Miguel C.
Madrid