使用C＃编码连接两台计算机

我想用c＃编码连接2台电脑..
我想要一台电脑作为服务器而另一台作为客户端工作..
我知道一些套接字编程以及..
我读了如何在msdn库中创建一个同步服务器和客户端这里 ..我使用的是那里提到的相同代码..

这两台电脑都有一个实时IP地址，并且不在任何局域网网络上..

我一直在客户端程序中的此异常..

SocketException：System.Net.Sockets.SocketException：连接尝试失败
因为连接方没有正确响应一段时间后，或建立的连接失败，因为连接的主机无法响应122 。162.98.164：11000
 在System.Net.Sockets.Socket.DoConnect（EndPoint endPointSnapshot，SocketAddress socketAddress）
 在System.Net.Sock ets.Socket.Connect（EndPoint remoteEP）
  at consoleclient.Program.Main（String [] args）in C：\ Users\mukul \Desktop\consol
eclient\consoleclient\Program。

i want to connect 2 computers using c# coding..
i want one computer to work as a server and other one as a client..
i know some socket programming as well..
i read how to create a synchronous server and client in msdn library here .. i am using the same code mentioned there..

both the computer have a live ip address and are not on any LAN network..

i keep getting this exception in the client program..

SocketException : System.Net.Sockets.SocketException: A connection attempt failed
because the connected party did not properly respond after a period of time, or
established connection failed because connected host has failed to respond 122 .162.98.164:11000
  at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
  at System.Net.Sock ets.Socket.Connect(EndPoint remoteEP)
  at consoleclient.Program.Main(String[] args) in C:\Users\mukul\Desktop\consol
eclient\consoleclient\Program.