Category Archives: SCCM 2012

Setup is unable to connect to SQL server error while installing SCCM 2012

 Setup is unable to connect to SQL Server with the connection information provided. Verify the following:

– The SQL Server and instance names are entered correctly
– The specified SQL Server instance is not configured to use dynamic ports
– If a firewall is enabled on the SQL Server, inbound rules exist to allow connections to the correct ports if not manually create them 
– The account used to run Setup has permissions to connect to the specified SQL server instance
– the account should administrative privileges on the machine


Open the “SQL Server Configuration manager” and Naviagte to The Protocols of your SQL Instance in the “SQL Server Network Configuration”
Enable “Named Pipes” and “TCP/IP”
Restart the SQL Service Instance within the SQL Server Services:

This seems to be a common issue during the SCCM 2012 setup:  
Verify also that you are running the one of the supported  SQL versions:
– SQL Server 2008 SP2 with Cumulative Update 9
– SQL Server 2008 SP3 with Cumulative Update 4
– SQL Server 2008 R2 with SP1 and Cumulative Update 6
– SQL Express no longer valid for SCCM 2012