title: ASP.NET MVC FormsAuthentication does not expire
body: <p>I am having a slight issue with my MVC app in that the Authentication cookie set by</p>
  
  <pre><code>FormsAuthentication.SetAuthCookie(usr.UserID, true);
  </code></pre>
  
  <p>Appears to never expire despite the timeout being set to 60 seconds in the web.config.</p>
  
  <p>If I login, then wait for a few mins (or even overnight) then go back to the site, I enter the site as if I am fully logged in still......</p>
  
  <p>How do I set it to log me out automatically after a few mins?</p>