title: [DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied
body: <p>I have SQL Server 2008 R2 installed.
  Everything was running fine unless my Wifi got disconnected.
  My desktop application was unable to find the sql server and was throwing the error message "[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied." </p>
  
  <p>My application and the sql server is in the same machine.
  I have my my protocols enabled and also I have disabled my firewall.
  I am wondering why the sql server is unreachable when wifi gets turned off?</p>