title: Sitecore Tracker is null after login with specified user
body: <p>I've doubt related with Sitecore.Analytics.Tracker and how sitecore tracks user information.
  This is the current version that i'm using - Sitecore.NET 8.1 (rev. 160519) with MVC</p>
  
  <p>I have a page for Login where I'm doing the manual login against sitecore and Tracker.Current is always null.</p>
  
  <p>And i want to create a Contact for the logged in user, or validate if there's any, to fill user info.</p>
  
  <p>Searched in showconfig.aspx for Analytics.Enabled and there were no results in it. All database connection strings are correct.</p>
  
  <p>Thanks in advance.</p>
  
  <p>Code example:</p>
  
  <pre><code>string domainUser = Sitecore.Context.Domain.GetFullName(model.Username);
  
  if (System.Web.Security.Membership.GetUser(domainUser) != null)
  {         
     bool logged = AuthenticationManager.Login(domainUser, model.Password, false);
     ....
  }
  </code></pre>
  
  <p>UPDATE:</p>
  
  <pre><code>ViewBag.XdbSettings = "Empty";
  if (XdbSettings.Enabled)
      ViewBag.XdbSettings = "Enabled";
  
  ViewBag.HasValidLicense = "Empty";
  if (XdbSettings.HasValidLicense)
      ViewBag.HasValidLicense = "HasValidLicense";
  
  ViewBag.Tracking = "Empty";
  if (XdbSettings.Tracking.Enabled)
      ViewBag.Tracking = "Enabled";
  
  ViewBag.Comment = "Empty";
  if (Tracker.Current != null)
      ViewBag.Comment = "Not Null";
  
  
  XdbSettings: Enabled
  HasValidLicense: HasValidLicense
  Tracking: Enabled
  Comment: Empty
  </code></pre>