Creating a SQL adaptor object on a remote server

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I have a project on a remote server consisting of a aspx page and a class. When I try to use the fill method of a sqldataadaptor to fill a dataset I get this error - Referenced object has a value of 'Nothing'. This works fine on my local machine. Below is some code to help show what I'm trying to do. I'm thinking permissions but what I have no idea, the project is using Windows Authenitication

Login.aspx cod

Imports PTS.PVBackoffic

Public Class Logi
Inherits System.Web.UI.Pag

Private m_BO As clsBackOffic

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Loa
If Not Page.IsPostBack The
FillEmployees(
End I
End Su

Sub FillEmployees(

m_BO = New clsBackOffic

With cboEmployee
.DataSource = m_BO.GetEmployee
.DataMember = "Employees
.DataTextField = "EmpName
.DataValueField = "OperatorID
.DataBind(
End Wit
End Su

Class Backoffice code routine GetEmployee

Public Function GetEmployees() As DataSe
Dim dstEmployees As New DataSe

Tr
m_adp = New SqlDataAdapte

m_adp.SelectCommand = New SqlCommand("qryGetEmployees", g_cnnPTS

m_adp.Fill(dstEmployees, "Employees") <--- This line gives me the error on the remote server, a local server works fin

Return dstEmployee

Catch ex As Exceptio
'MessageBox.Show(ex.ToString
Finall
If g_cnnPTS.State = ConnectionState.Open The
g_cnnPTS.Close(
End I

If Not m_adp Is Nothing The
m_adp = Nothin
End I
End Tr
End Function