Here's what I have discovered that helped resolve my issue. 1. I had created a dedicated named instance for the Syncope database, but that wasn't working so I moved it over to the default instance.
2. Authentication using a domain account didn't seem to work, so I set the SQL installation to mixed mode and created a SQL user for the application to connect as. -- Sent from: http://syncope-user.1051894.n5.nabble.com/