Probleme mit Socket

[IcEcrEaM]

Also ich bin dabei einen Kleinen ChatClient zu Schreiben nur er bekommt keine verbindung zum server . Es gibt antscheinend probleme mit dem Socket, wenn ich versuche zu verbinden. Ich habe den server mit einer Consolenanwenung mehrmals geprüft an ihn kann es nicht liegen! (denke ich)
Kann mir jmd weiterhelfen
(sry für die schlechte namens gebung)

ClientCode:

using System;
using System.Windows.Forms;
using System.Drawing;
using System.Text;
using System.Net.Sockets;
using System.Net;
using System.IO;
using System.Threading;

namespace MainNameSpace
{
	class MainClass
	{
		public static void Main()
		{
			CHauptfenster ChatWindow = new CHauptfenster(Dns.GetHostName(), 305);
			Application.Run(ChatWindow);
		}
	}
	class CHauptfenster : Form
	{
		//Windows.Forms
		Button 		bt_Start;				//Button um die Verbindung zu öffen bzw. zu Beenden!
		Label 		lb_Text;				//Textfeld für die ausgabe
		TextBox 	tb_ToSend;				//Für die Eingabe!
		//Net
		Stream 		s_MainStream;			//Für den Datenstrom vom Server
		TcpClient 	tcpc_Client;			//Für die verbindung zum Server
		//Sonstiges
		bool		b_isConnectet;
		string 		str_Address;			//Speichert die Server Addresse
		int			i_ConnectionPort;		//Speichert den Port vom Server

		//Konstruktor!
		public CHauptfenster(string ServerAddress, int ServerPort)
		{
			//net
			tcpc_Client = new TcpClient();
			//Sonstiges
			b_isConnectet		= false;
			str_Address			= ServerAddress;
			i_ConnectionPort	= ServerPort;
			//Fenster
			this.Text 			= "Chat Client By IcEcrEaM";
			this.MaximizeBox 	= false;
			this.MinimizeBox 	= true;
			this.ControlBox		= true;
			this.Width			= 670;
			this.Height			= 400;
			this.Top			= 180;
			this.Left			= 180;
			//Button
			bt_Start 			= new Button();
			bt_Start.Width		= 100;
			bt_Start.Height 	= 30;
			bt_Start.Top 		= 325;
			bt_Start.Left 		= 540;
			bt_Start.Text		= "Send";
			//TextBox
			tb_ToSend			= new TextBox();
			tb_ToSend.Text		= "";
			tb_ToSend.Width		= 435;
			tb_ToSend.Height	= 100;
			tb_ToSend.Top		= 330;
			tb_ToSend.Left		= 95;
			//Label
			lb_Text				= new Label();
			lb_Text.Width		= 100;
			lb_Text.Height		= 30;
			lb_Text.Top			= 330;
			lb_Text.Left		= 14;
			lb_Text.Font		= new System.Drawing.Font("SimHei", 12);
			lb_Text.Text		= "You Write:";
			//Register Controls
			Controls.Add(bt_Start);
			Controls.Add(tb_ToSend);
			Controls.Add(lb_Text);
			//Envent Reg.
			bt_Start.Click		+= new EventHandler(On_Activated);
			tb_ToSend.KeyPress 	+= new System.Windows.Forms.KeyPressEventHandler(On_tb_ToSend_KeyPress);
			Click 				+= new EventHandler(On_Click);
		}
		protected void StartConnection()
		{
			while(true)
			{
				try
				{
					tcpc_Client.Connect(Dns.Resolve(str_Address).AddressList[0], i_ConnectionPort);
				}
				catch
				{
					DialogResult MsgbResult = MessageBox.Show("Die Verbindung zu " + str_Address + ":" + Convert.ToString(i_ConnectionPort) + " konnte nicht hergestellt werden!", "Fehler", MessageBoxButtons.RetryCancel, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2);
					if(MsgbResult == DialogResult.Retry) 
					{
						continue;
					}
					else
					{
						break;
					}
				}
				b_isConnectet = true;
			}
		}
		protected void Send(string str_ToSend)
		{
			if(b_isConnectet == false)
			{
				StartConnection();
			}
			else if(b_isConnectet)
			{
				while(true)
				{
					try
					{
						s_MainStream = tcpc_Client.GetStream();

					}
					catch (InvalidOperationException) 
					{
						DialogResult MsgbResult = MessageBox.Show("Der Stream zu " + str_Address + ":" + Convert.ToString(i_ConnectionPort) + " konnte nicht hergestellt werden!\nSoll der Versuch wiederholt werden", "Fehler", MessageBoxButtons.RetryCancel, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2);
						if(MsgbResult == DialogResult.Retry) 
						{
							continue;
						}
						else
						{
							return;;
						}
					}
					byte[] BytesToSend	= Encoding.ASCII.GetBytes(str_ToSend);
					s_MainStream.Write(BytesToSend, 0, BytesToSend.Length);
					s_MainStream.Close();
				}
			}
		}
		//Events
		protected void On_Click(object sender, System.EventArgs e)
		{
			StartConnection();
		}
		protected void On_bt_Click(object sender, System.EventArgs e)
		{
			Send(tb_ToSend.Text);
			tb_ToSend.Text = "";
		}
		protected void On_tb_ToSend_KeyPress(object sender, KeyPressEventArgs e)
		{
			if(e.KeyChar == (char)13)
			{
				Send(tb_ToSend.Text);
				tb_ToSend.Text = "";
			}
		}

	}
}

Und hier ist der Server Code:

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.IO;
using System.Threading;

namespace ServerNameSpace
{
	class MainClass
	{
		static void Main()
		{
			Server muh = new Server(305);
			muh.Run();
		}
	}
	class Server
	{
 		TcpListener tcpl;
		Socket s;

		public Server(int ServerPort)
		{
			tcpl = new TcpListener(Dns.Resolve(Dns.GetHostName()).AddressList[0], ServerPort);
			tcpl.Start();
			Console.WriteLine("Server running now on {0}:{1}", Dns.Resolve("212.204.13.135").AddressList[0], ServerPort);
		}
		public void Run()
		{
			Thread Star = new Thread(new ThreadStart(Start));
			Star.Start();
		}
		public void Start()
		{
			while(true)
			{
				s = tcpl.AcceptSocket();
				byte[] ReceivedBytes = new byte[100];
				s.Receive(ReceivedBytes, 0, SocketFlags.None);
				s.Send(ReceivedBytes);
				checked
				{
					Console.WriteLine(Encoding.ASCII.GetString(ReceivedBytes));
				}
			}
		}
	}
}