I'm going to post this quickly, and I'll check back tomorrow.
START MENU->MICROSOFT SQL SERVER 2005->CONFIGURATION TOOLS->SQL SERVER CONFIGURATION MANAGER
under SQL Server 2005 Services, do you see the 'SQL Server (AUTODESKVAULT)' service running?
If you are running a network solution, you would have IIS installed, but since you are not, the SQL server should be running on a layer provided by AWS, the Autodesk Web Server (a local service solution provided by Autodesk for standalong installations).
I want to know what SQL is up to. I am hoping to figure the next step from here. I don't know if it will matter, but it's possible that IIS got installed during the lan changeover. If so, I am not sure how the SQL servers that would have been on AWS will respond.
Let me know
John Evans
http://civil2inventor.wordpress.com
John Evans
Autodesk Certified Professional
http://designandmotion.net