Server Error in '/slovnik' Application.

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: TCP Provider, error: 0 - No such host is known.)

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: 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: TCP Provider, error: 0 - No such host is known.)

Source Error:


Line 51:             cmd.CommandType = CommandType.Text;
Line 52:             cmd.Parameters.Add("@kw", SqlDbType.NVarChar, 300).Value = kw;
Line 53:             conn.Open();
Line 54:             var res = cmd.ExecuteScalar();
Line 55: 

Source File: d:\Inetpub\mfapp\www.zive.cz_3.0\slovnik\redir.aspx    Line: 53

Stack Trace:


[SqlException (0x80131904): 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: TCP Provider, error: 0 - No such host is known.)]
   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +578
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +88
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +6324359
   System.Data.SqlClient.SqlConnection.Open() +258
   ASP.redir_aspx.GetUrl() in d:\Inetpub\mfapp\www.zive.cz_3.0\slovnik\redir.aspx:53
   ASP.redir_aspx.Page_Load(Object sender, EventArgs e) in d:\Inetpub\mfapp\www.zive.cz_3.0\slovnik\redir.aspx:10
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +42
   System.Web.UI.Control.OnLoad(EventArgs e) +132
   System.Web.UI.Control.LoadRecursive() +66
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428


Version Information: Microsoft .NET Framework Version:2.0.50727.8669; ASP.NET Version:2.0.50727.8015