The following exception was caught by the Masters Global Exception Handler:

An exception of type 'System.Data.SqlClient.SqlException' occurred and was caught.
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02/06/2012 09:56:55
Type : System.Data.SqlClient.SqlException
Message : A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Source : .Net SqlClient Data Provider
Help link : 
Errors : System.Data.SqlClient.SqlErrorCollection
Class : 20
LineNumber : 0
Number : 2
Procedure : 
Server : 
State : 0
ErrorCode : -2146232060
Data : System.Collections.ListDictionaryInternal
TargetSite : Void OnError(System.Data.SqlClient.SqlException, Boolean)
   at Masters.Security.SecurityUtils.HandleException(Exception ex) in d:\Projects\Masters.Common2\LogicCommon\SecurityUtils.cs:line 17
   at Masters.Security.Authentication.Authenticate(String a_UserName, String a_Password) in d:\Projects\Masters.Common2\LogicCommon\Authentication.cs:line 126
   at _Default.InitControls()
   at _Default.Page_Load(Object sender, EventArgs e)
   at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e)
   at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e)
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Additional Info:

MachineName : MSERVER
TimeStamp : 06.2.2012 г. 07:56:55
FullName : Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null
AppDomainName : /LM/W3SVC/1/Root/frameusermode-2-129729885994691669
ThreadIdentity : 
WindowsIdentity : NT AUTHORITY\NETWORK SERVICE