title: Multiple users assigned same session id
body: <p>I am facing an issue with one of the deployed applications where I am seeing same session ids being provided to different users. The main source of this analysis is the nlog file which outputs the session and identity.</p>
  
  <p>The deployed environment is asp.net mvc 5.2, .NET 4.5, IIS 8.5</p>
  
  <p>I am unable to reproduce the error on my local system with a simulated load of 200 users and also not able to figure out any pattern as to when the session-ids are getting re-used</p>
  
  <p>I have tried to </p>
  
  <ul>
  <li>Disabled cache a global filter level to ensure that there is no aggressive caching - <a href="https://stackoverflow.com/questions/12948156/asp-net-mvc-how-to-disable-automatic-caching-option">ASP.NET MVC how to disable automatic caching option?</a></li>
  </ul>
  
  <p>Further to this I want to try couple of things -</p>
  
  <ol>
  <li>I will try to assign a dummy value on every successful login just to ensure that session is used</li>
  <li>Try to use in-memory session rather than using Redis Session State Provider</li>
  <li>Remove the dependency of session in the application and use cache </li>
  </ol>
  
  <p>I am not sure if I am looking @ right direction in solving this issue. Any suggestions will be of great help.</p>