I can get the Management Studio to connect to my named and default instances, even the report service and the profiler as well as the configuration tool work fine. But SSMA gives this: Connection to SQL Server failed.
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 - No connection could be made because the target machine actively refused it.)

Why would the management studio connect but not the migration application?

Kevin