How to connect single client to multiple server?

See more:

server

C#5.0

sockets

I want to connect single client to multiple servers . now my client able to connect to one server only . I made code which works fine to connects to multiple servers. through different or same ports. but the issue is that it comunicates with both servers but when i send message from server to this client it replies to first server only one time and and to 2nd server multiple times. i dont get why it happends ? Is it broke connection with 1st server after connecting second?



here is my program for two server connections ,

public partial class Form1 : Form
   {
       int counter = 0;

       public Form1()
       {
           InitializeComponent();
       }

       Socket clsock;

       private void button1_Click(object sender, EventArgs e)
       {
           Thread th = new Thread(() => StartClient());
           th.Start();
       }


       public void StartClient()
       {
           try
           {
               clsock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
               int port = Convert.ToInt32(txtport.Text);
               IPAddress ip = IPAddress.Parse(txtip.Text);
               clsock.Connect(ip, port);
               counter += 1;
               AppendlblData(Convert.ToString(counter) + " Server Connected " + clsock.RemoteEndPoint + Environment.NewLine);
               Thread th = new Thread(() => ReceiveData());
               th.Start();
           }
           catch { }
       }


       public void ReceiveData()
       {
           try
           {
               for (int i = 0; i >= 0; i++)
               {
                   byte[] data = new byte[128];
                   clsock.Receive(data);
                   string dataReceived = Encoding.ASCII.GetString(data);
                   char[] c = { '*', '$', '!', '@' };

                   if (dataReceived != null)
                   {
                       string res = dataReceived.TrimStart(c);
                       MessageBox.Show(res);
                       // SendKeys.SendWait(res);
                   }
               }
           }

           catch(Exception es)
           {
               if (clsock.Connected !=true)
               {
                   StopClient();
                   AppendlblData("Connection closed from Server");
               }
           }
       }


       private void Form1_Load(object sender, EventArgs e)
       {
           MaximizeBox = false;
       }


       public void AppendlblData(string myval)
       {
           if (InvokeRequired)
           {
               this.Invoke(new Action<string>(AppendlblData), new object[] { myval });
               return;
           }
           richtxtbox.Text += myval;
       }


       private void button2_Click(object sender, EventArgs e)
       {
           StopClient();
       }

       public void StopClient()
       {
           try
           {
               AppendlblData("Disconnected from Server -" + clsock.RemoteEndPoint + Environment.NewLine);
               clsock.Close();
           }
           catch { }
       }
   }