ArcSDE Problems: Microsoft SQL Server 2008 R2 on Windows 2008 R2 Standard (64-Bit)

Discussion created by martinscheiber on Feb 20, 2014
Latest reply on Feb 24, 2014 by crafty762
I´m trying to set up ArcSDE 10.2 on a  Microsoft SQL Server 2008 R2 64-Bit running on a Windows 2008 R2 Standard 64-Bit machine.
I can create the database connection, but when I want to enable it for spatial data I keep on getting the following error message:

 Error: The version of your database server is not supported
 ERROR installing/upgrading ArcSDE, Error = -494

This is strange because the ESRI page on System Requirements states, that this combination should work.

Any idea what I could do, to get it fixed?