Problemer med SQL.. haster :)

Jeg får følgende fejl... Kan du hjælpe mig?


Login failed for user 'NT AUTHORITY\NETWORK SERVICE'.
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: Login failed for user 'NT AUTHORITY\NETWORK SERVICE'.

Source Error:


Line 68:                  Dim sqlCommand As System.Data.SqlClient.SqlCommand = New System.Data.SqlClient.SqlCommand(queryString, sqlConnection)
Line 69:   
Line 70:          sqlConnection.Open()
Line 71:   
Line 72:                  sqlCommand.Parameters.Add("@Username", System.Data.SqlDbType.VarChar).Value = username


Source File: c:\inetpub\wwwroot\NewUser.aspx    Line: 70

Stack Trace:


[SqlException: Login failed for user 'NT AUTHORITY\NETWORK SERVICE'.]
  System.Data.SqlClient.SqlConnection.Open() +761
  ASP.NewUser_aspx.existinguser(String username) in c:\inetpub\wwwroot\NewUser.aspx:70
  ASP.NewUser_aspx.Cmdsubmit_Click(Object sender, EventArgs e) in c:\inetpub\wwwroot\NewUser.aspx:144
  System.Web.UI.WebControls.Button.OnClick(EventArgs e) +108
  System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +57
  System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
  System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
  System.Web.UI.Page.ProcessRequestMain() +1263