Error In Calling Stored Procedure

I want to call a stored procedure in ASP.Net 2.0. I've already made sure that the SP contains no error by the Query Analyzer.

However, when I try to run this in the ASP.Net application, error occured.
This error message is {"Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding."}
 
Calling the SP via a Class1 Public Function ExecuteStoredProcedure(ByVal Name As String, ByVal Para() As String, ByVal Value() As String)
2 If Para.Length <> Value.Length Then Exit Function
3 SqlCmd = New SqlCommand
4 SqlCmd.Connection = SqlConn
5 SqlCmd.CommandText = Name
6 SqlCmd.CommandType = CommandType.StoredProcedure
7 For i As Integer = 0 To Para.Length - 1
8 'SqlCmd.Parameters.AddWithValue(Para(i), Value(i))
9 Dim p As New SqlParameter(Para(i), SqlDbType.NVarChar)
10 p.Direction = ParameterDirection.Input
11 p.Value = Value(i)
12 SqlCmd.Parameters.Add(p)
13 Next
14 SqlCmd.ExecuteNonQuery()
15 End Function

 
The Code behind file
 1 Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
2 If txtFromDate.Text = "" OrElse txtToDate.Text = "" Then
3 trMsg.Visible = True
4 Exit Sub
5 End If
6
7 Dim ts As New Thread(AddressOf GenerateReport)
8 ts.Start()
9
10 MultiView1.ActiveViewIndex = 1
11 lblConfirmationMessage.Text = "Report generating in progress." & vbNewLine & "You can continue using other functions."
12 End Sub
13
14 Protected Sub GenerateReport()
15 Dim userName As String = CType(Session("User"), clsUser).UserName
16 Dim from As String = txtFromDate.Text
17
18 Dim conn As New clsConnector
19 conn.OpenConnection()
20 'conn.Insert("EXEC gen_report '" + txtReportName.Text + "','" + txtDescription.Text + "','" + userName + "','" + txtFromDate.Text + "','" + txtToDate.Text + "';")
21 conn.ExecuteStoredProcedure("gen_report", _
22 New String() {"@name", "@remark", "@by", "@fromdate", "@todate"}, _
23 New String() {txtReportName.Text, txtDescription.Text, userName, txtFromDate.Text, txtToDate.Text})
24 conn.CloseConnection()
25 End Sub
26
 
 Thanks!