Hi kevomac,
Are you connecting from the migration tool to remote SQL Server instance? Do you get the following error message?
TCP Provider, error: 0 - No connection could be made because the target machine actively refused it
If that is the case, please go through the following checklist to troubleshoot the "connection refused" problem.
1. Make sure you are able to ping the server where SQL Server is installed.
2. As other post, ensure the SQL Server instance is enabled TCP/IP protocol in SQL Server Configuration Manager (SSCM) and it is listening on a valid TCP port.
3. If you connect to a named instance, make sure that the SQL Server Browser service is running.
4. Configure the Windows Firewall for the SQL Server TCP port and SQL Browser service if firewall is on.
5. Check out IPSec setting if you still face problem. See whether IPSec specification make dropping any packets.
For more details, please review the following blog.
http://blogs.msdn.com/b/sql_protocols/archive/2007/07/19/tcp-provider-no-connection-could-be-made-because-the-target-machine-actively-refused-it.aspx
Thanks,
Lydia