SCCM 2012 R2 (Configuration Manager) – Setup is unable to connect to SQL Server

Chances are you have a named instance for your SCCM SQL install, which is definitely the way to go. However, when installing SCCM 2012 (R2) you are presented with the following error.

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
  • The account used to run Setup has permissions to connect to the specified SQL server instance

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To resolve this is pretty pain-less.

In my scenario, I implemented the following two solutions:

  1. Enable Named Pipes for your SQL Server Network Configuration
  2. Delete all Dynamic (TCP/IP) Ports within the Protocols for your SQL Named Instance

First, to Enable Named Pipes, Launch SQL Server Configuration Manager, expand the SQL Server Network Configuration. Locate your named instance, right-click on TCP/IP and enable.

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Second, within the same console view, double-click and open the TCP/IP properties.

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