title: Unable to communicate to a port in which server is listening
body: <p>I have an application which listens to port(8087). There is a client process which give request to this server and server will send response message back. After some requests and response, my client process is not able to connect to that port.</p>
  
  <p>I could see a port listening when i used netstat tool. Also my process is running. </p>
  
  <pre><code># netstat -a | grep 8087
  tcp        0      0 0.0.0.0:8087            0.0.0.0:*               LISTEN
  </code></pre>
  
  <p>But i am not able to connect to that port from a client. What could be the reason for this?</p>