title: Losing Session State
body: <p>I have an ASP.net application where Users aren't able to successfully complete certain actions, for reasons, I'm assuming, can only be related to losing their session (which is where I maintain their current user information, and how determine whether they are logged in)</p>
  
  <p>I'm at a loss as to why they would lose their session, so my first question is:</p>
  
  <p><strong>What (in general) would cause a user to lose their session in ASP.net?</strong></p>
  
  <p>and since I don't know when a user loses their session and can't reproduce it myself:</p>
  
  <p><strong>How can I track when I user loses their session</strong></p>
  
  <p>Below is my sessionState config for reference</p>
  
  <pre><code>&lt;sessionState
             mode="InProc"
             cookieless="false"
             cookieName="My.Site.Com"
             timeout="480"/&gt;
  </code></pre>