BackgroundWorker og system.net.webrequest, virker ikke som det skulle

Det er nok lidt svært at sige noget om, uden at se noget kode. BackgroundWorkers kører i deres "egen" tråd - dvs. de bruger en fra ThreadPool'en.

her er koden som der bliver kørt 5 gange af hver BackgroundWorker



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Private Function GetXMLfromPhone(ByVal ipaddress As System.Net.IPAddress, ByVal CallingWorker As Integer, Optional ByVal XMLgetTimeout As Integer = 2000) As string


        Dim request As WebRequest



        Dim PhoneXML As New Xml.XmlDocument
       
        Dim result As String = Nothing

        Dim FejlString As String = ""
        Dim FejlResponce As String = ""

        Dim errorNo As Boolean = False
       

        request = WebRequest.Create("http://" & ipaddress.ToString & "/XMLinfo")
        Dim response As HttpWebResponse = Nothing
        request.Timeout = XMLgetTimeout




        RaiseEvent UpdateWorkerIpInfo(CallingWorker, ipaddress.ToString)

        Try
            response = CType(request.GetResponse(), HttpWebResponse)

            Dim dataStream As Stream = response.GetResponseStream()
            Dim reader As New StreamReader(dataStream)
            result = reader.ReadToEnd()


       



        Catch ex As WebException
            FejlString = "HTML:WEB:" & ex.Status
            errorNo = True
        Catch ex As Exception
            FejlString = ex.ToString
            errorNo = True
        Finally
            If Not response Is Nothing Then response.Close()




        End Try



     

        return result


    End Function