static void Main(string[] args) { var client = new ServiceReference1.Service1Client( Service1Client.EndpointConfiguration.NetTcpEndpoint, new EndpointAddress(new Uri("net.tcp://tpainvwaxpxy02.corp.temp.lcl/Service1.svc/netTcpTest"), new UpnEndpointIdentity("*****@*****.**"))); var result = client.GetDataAsync(1).Result; Console.WriteLine(result); }