通过代理服务器连接到聊天服务器的C＃客户端丢失

Question

我的问题是我有一个使用NetSockets连接到C＃服务器的Silverlight C＃客户端。问题是当我们有客户端在代理服务器后面时，连接到服务器时出现问题。我们得到入站连接，然后我们似乎无法再进行通信。已在代理服务器和客户端计算机上检查防火墙。我们已经确认他们的港口是开放的。

以下是我的服务器代码的摘录：

public void StartServer()
    {
        //Silverlight port range: 4502-4532
        _socketListener = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        IPEndPoint ipLocal = new IPEndPoint(IPAddress.Any, 4530);
        _socketListener.Bind(ipLocal);
        _socketListener.Listen(4);

          while (true)
        {
            // Set the event to nonsignaled state.
            _allDone.Reset();
            Console.WriteLine("Begin Accept Connections");
            // create the call back for any client connections...
            _socketListener.BeginAccept(new AsyncCallback(HandleClientConnectionRequest), null);
            Console.WriteLine("Accept Done");
            // Wait until a connection is made before continuing.
            _allDone.WaitOne();
            Console.WriteLine("Waiting for connection.....");

        }
}

这是连接回调：

public void HandleClientConnectionRequest(IAsyncResult asyn)
    {
        try
        {
            Console.WriteLine("Request For Connection.");
            // Signal the main thread to continue.
            _allDone.Set();

            //Create a packet to hold the client state
            CSockPack clientSocket = new CSockPack();
            clientSocket.cSocket = _socketListener.EndAccept(asyn); ;


            //Wait for incoming data
            WaitForData(clientSocket);

            Console.WriteLine("New client connected.");
           // SendData("New client connected");

            clientSocket.cSocket.Send(System.Text.Encoding.ASCII.GetBytes("Authenticate<end>"));
        }
        catch (ObjectDisposedException)
        {
            Console.WriteLine("OnClientConnection: Socket has been closed\n");
        }
        catch (SocketException se)
        {
            Console.WriteLine(se.Message);
        }

    }

在Silverlight方面：

public Socket _socket;
public DnsEndPoint _endPoint;
public SocketAsyncEventArgs _sendEventArgs;

这是在Silverlight中的Application Start：

_endPoint = new DnsEndPoint(Application.Current.Host.Source.DnsSafeHost, 4530);
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

SocketAsyncEventArgs args = new SocketAsyncEventArgs();
args.UserToken = _socket;
args.RemoteEndPoint = _endPoint;
args.Completed += new EventHandler<SocketAsyncEventArgs>(OnSocketConnectCompleted);

_socket.ConnectAsync(args);

有什么想法吗？