In our new environment I have been able to connect some users to the SDE user in ArcSDE 10.2.2, but not all users. Has anyone else run into this issue and how were you able to rectify the issue?
I figured what the issue was, our users needed to be at ArcGIS 10.2 or higher on their desktops and they needed to have the SQL Server 2012 Native Client installed. Once I had these I have been able to connect users. It did not work if the users had less than ArcGIS 10.2 or they only had up to SQL Server 2008 r2 Native Client. We are using full SQL as our RDBMS.
Are you getting any specific error messages? What rdbms are you using?
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