反向连接错误

Question

我正在尝试建立反向连接，但没有任何反应 系统只会尝试无限连接

客户代码：

 private static Socket _clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
    public static TcpClient client;
    private const int _PORT = 28562;  //port
   public static string connectTo = "example.ddns.net"; //addres
    public static IPAddress ipaddress = null;

...

private static void ConnectToServer()
        {

            int attempts = 0;

            bool IsValidIP = IPAddress.TryParse(connectTo, out ipaddress);
            if (IsValidIP == false)
            {
                ipaddress = Dns.GetHostAddresses(connectTo)[0];
                Console.WriteLine(Dns.GetHostAddresses(connectTo)[0]);
            }
            client = new TcpClient();

            while (!_clientSocket.Connected)
            {
                try
                {
                    attempts++;
                    Console.WriteLine("Connection attempt " + attempts);
                    _clientSocket.Connect(ipaddress, _PORT);
                    Thread.Sleep(100);

                }
                catch (SocketException)
                {
                    Console.Clear();
                }
            }
            Console.Clear();
            Console.WriteLine("Connected");

        }

我可以进行哪些更改以能够连接？