No VB connectivity to remote SQL Server 2008 database

Hello, 
 
i have two pc's. One having the SQL Server 2008 and the database and the other pc at a different location that has the source code. Now i wrote a code :
 

Imports System.Data.Sql
Imports System.Data.SqlClient
 
Public Class Form1
    Dim mycon As SqlConnection
 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        mycon = New SqlConnection("Data Source=ipaddress,port;Initial Catalog=ClassManagement;Integrated Security=SSPI;User ID=infotronics;Password=ASD789456;")
 
        mycon.Open()
        MsgBox("OPEN")
 
    End Sub
End Class

 
The following code shows an error when debugged.
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