You mentioned you moved the database to the server; did you re-create the data source on that server computer?
Are you using Actual Technologies latest driver?
I find I have to do some of my work using FM Pro/Adv ON THE SERVER computer before I am able to do it from another client workstation. Turn off server, open FM Pro/Adv ON THE SERVER, set the credentials in your db, then restart FM Server.
For the Server Test Environment, FileMaker Server requires a Server OS. You said your Server Test Environment was Windows 7. That won't work. But it should work for Windows 2008 R2 if you have installed the Windows ODBC driver and set up the DSNs. What happens if you hard code the User ID and password in the DSN?