title: Can't get database mirror witness to connect
body: <p>I have successfully configured a principal and mirror with SQL Server 2008 and Windows Server 2008 R2 64bit. However, when I attempt to add a witness <code>(SQL Server 2005 and Windows Server 2003 32bit)</code> to the mix, I get the following errors in the event log of the primary:</p>
  
  <pre><code> EventID 1456 "The ALTER DATABASE command could not be sent to the remote 
       server instance 'TCP://SERVERNAME.DOMAIN:5022'. The database mirroring 
       configuration was not changed. Verify that the server is connected,
       and try again." and EventID 1474 "Database mirroring connection error 
        4 'An error occurred while receiving data: '64(The specified network name is 
        no longer available.)'.' for 'TCP://SERVERNAME.DOMAIN:5022'."
  </code></pre>
  
  <p>I can see a temporary established connection on port 5022 via netstat and SQL Profiler and then these errors.</p>
  
  <p>Does anyone know why is this happening?</p>