I have ArcGIS Server 10.2 running on a Windows Server 2012 R2 Standard server with SQL Server 2012 R2. I'm able to create enterprise geodatabases fine, and import feature classes into the geodatabases with no problems. I've registered the geodatabase with the server successfully. I then created a map (with the geodatabase as the default database) and added a few of the feature classes in order to publish them as a service.
When I try to publish the service, the Analyze step in the Service Editor is returning a "Feature service requires a registered database" error. I open up the data store registration page, choose Validate All, and everything checks out fine. The map is using the same connection to the database that ArcMap Catalog uses, with a SQL Server login that is a dbowner of the database. Is there anything that I'm missing here? Have not been able to solve this issue.