The error you mention is an inability for csauth to talk to the host. If this is on the same box, it could be because csauth isn't running - check under services.
You can also view your DBSync logs in the GUI. Also, you can enable tracing in windows for further debugs if necessary.
Unfortunately, there are several issues that can cause errors like this, the most common being:
- incorrectly named file - should be accountActions.
- file names don't match in registry, in appropriate directory, and/or schema.ini
- csauth not running
- host not reachable.
Beyond that, it's usually still just a configuration error, and the text or Excel on the same box is a good way to start to eliminate errors from other sources.
Good luck,
Jeff