title: SSMS: Can login with 'localhost' but not 'localhost\MSSQLSERVER'?
body: <p>I guess this is a very basic issue to solve but I've unfortunately spent hours trying to do exactly that... I'm running SQL Server 2008 R2 Developer edition. Everything works fine but I can only connect to the Object Explorer (in Management Studio), using 'localhost' or the machine name, as the server? The error I'm receiving is "...The server was not found or was not accessible..."</p>
  
  <p>I need to be able to connect using <code>localhost\MSSQLSERVER</code> or <code>machinename\MSSQLSERVER</code>. This is important because my 3rd party application requires the FQDN or server + SQL instance name (which in this case is <code>MSSQLSERVER</code>), in order to connect successfully.</p>
  
  <p>Below is a list of things I've done/checked:</p>
  
  <ul>
  <li>SQL Browser service is running, however when I browser for Local Servers, nothing is displayed.</li>
  <li>In Configuration Manager, all SQL Native and SQL Network options have TCP/IP enabled and Named Pipes enabled (with default ports and settings). SQL Server is running on default port of 1433.</li>
  <li>Everything was installed with local admin account and I'm running SSMS as local admin.</li>
  <li>I haven't been able to find anything useful in the SQL error logs.</li>
  </ul>
  
  <p>Is anyone able to help me with some further troubleshooting steps as I'm border-line stuck for more ideas now...</p>
  
  <p>Thanks for any help.
  Jay</p>