title: SQL Linked Server Named pipes provider - error 5
body: <p>I have SQL server 2012 installed on a machine. I connected it successfully using Linked Server from the another machine. however when i tried to connected the same machine from another labtop  which is on the same network i got the following error: please note that i have checked i can assess the sql server from SQL Server Management studio but it does not connected if i try to do it using linked server. I have checked tcp, named pipes are enable. Any suggestion </p>
  
  <p><strong>Error</strong>:</p>
  
  <pre><code>Named Pipes Provider: Could not open a connection to SQL Server [5]. 
  OLE DB provider "SQLNCLI11" for linked server "MAL_SQL" returned message "Login timeout expired".
  OLE DB provider "SQLNCLI11" for linked server "MAL_SQL" returned message "A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online.". (.Net SqlClient Data Provider)
  </code></pre>