title: Server takes too long to send FIN, ACK
body: <p>I have a mobile app (in capture is 186.18.33.118) Requesting data from some simple http server from php api (200.80.41.246).</p>
  
  <p>When I send request from my app, I can not access to the web server from the same lan That send request, for a minute.</p>
  
  <p>The server is a Centos 7 apache and all updates.</p>
  
  <p>I analize with tcpdump the packets between the server and my application (below show the capture when I request from the app to server and after from my browser to the server to open with wireshark).</p>
  
  <p>The strange all I can see is that the server takes too long to send the FIN packet, ACK</p>
  
  <p>What can be wrong?</p>
  
  <p><strong>EDIT/ADD</strong></p>
  
  <p><a href="https://drive.google.com/file/d/0B985zfFLzWBEaVhhNE0xcTNCR1E/view?usp=sharing" rel="nofollow">Capture with tcpdump</a></p>
  
  <p>(steps of how I make the capture)</p>
  
  <ol>
  <li><p>I opened the app in the phone (this app makes consults to the wordpress installed on server 200.80.41.246)</p></li>
  <li><p>after few seconds i tried to enter from the browser (from the same lan network that is connected to the cellphone) to wordpress</p></li>
  <li><p>the server brings me a message saying: error timeout (near the packet 45)</p></li>
  <li><p>so I try  many times and after a minute aproximately connection works properly (near the packet 110)</p></li>
  </ol>
  
  <p><strong>EDIT 2</strong></p>
  
  <p>I made the comparison between the query to the api from the browser and from the app, because when I make the request from the browser does not bring problems, and the difference I found is that the browser sends a RST packet that the app does not send.
  Below I leave a picture, the top is the query from the browser and the bottom is the query from the app.</p>
  
  <p><a href="http://i.stack.imgur.com/uqHEN.jpg" rel="nofollow">analyzed capture by wireshark</a></p>
  
  <p>Any suggestions?</p>