title: Selfhosted Asp.Net WebApi stops receiving reuqests
body: <p>I have a REST service in a self hosted ASP.Net WebApi application (Console). </p>
  
  <p>Some clients poll the server in specific intervals to fetch new data. In general all is working fine. </p>
  
  <p>The problem is, that the server stops responding to requests after some random duration (~30mins - 2.5 hours). All client requests start to time out. </p>
  
  <p>The weird thing is, the server doesn't seem to receive the requests anymore as no controller method is invoked anymore). Server didn't throw any exceptions and the console app is still responsive. So I can only suppose there is a problem, before the request reaches the API controller. </p>
  
  <p>In the debugger everything seems fine.</p>
  
  <p><strong>How can I diagnose such an issue?</strong> </p>
  
  <p><strong>What else can I try to fix the described behavior?</strong></p>
  
  <p>Notes:</p>
  
  <ul>
  <li>Tested on multiple systems</li>
  <li>.Net 4.5.1</li>
  <li>Asp.Net WebApi 5.1.2</li>
  </ul>