Asp.Net Identity + Identity not maintaining across request

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ASP.NET

Identity

Hi All,
I am trying to implement Asp.net Identity in my web (MVC5) application. In User Authentication method I am authenticating user, if user exist then I am manually creating Claims Identity and Principal in my application (Authentication.cs). After that I am assigning the Claims Principal to current HttpContext and Thread. So now I am able to see Identity in the same request httpcontext. But if I am trying to access Claims Identity from different action/page then it will show a null values in the User.Identity object, that is, Identity is not maintaing in the subsequent request.

In my application I set AuthenticationMode="None" in web.config so I removed LoginPath attribute from OWIN Startup class.

//OWIN startup.cs
[assembly: OwinStartup(typeof(Web.Startup))]
namespace Web
{
    public class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            // For more information on how to configure your application, visit http://go.microsoft.com/fwlink/?LinkID=316888

            app.UseCookieAuthentication(new CookieAuthenticationOptions
            {
                AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                CookieSecure = CookieSecureOption.Always
            });

        }
    }
}

//Authentication.cs
//After user authentication, setting Thread and http context.
if (user != null)
{
	var authenticationManager = HttpContext.Current.GetOwinContext().Authentication;

	var claims = new List<Claim>();
	claims.Add(new Claim(ClaimTypes.Name, "username"));
	claims.Add(new Claim(ClaimTypes.Email, "username@gmail.com"));
	var userIdentity = new ClaimsIdentity(claims, DefaultAuthenticationTypes.ApplicationCookie);

        ClaimsPrincipal principal2 = new ClaimsPrincipal(userIdentity);

	authenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = true }, userIdentity);

	var test = HttpContext.Current.User.Identity.IsAuthenticated; //return false

	System.Threading.Thread.CurrentPrincipal = principal2;
	HttpContext.Current.User = principal2;

	test = userIdentity.IsAuthenticated; // User Identity is authenticated return true

	test = HttpContext.Current.User.Identity.IsAuthenticated; //return true
}

I am not sure why Identity values are not maintaining in httpcontext or can I access the identity in some other ways in other pages/actions?

I assume that I missed something in the identity implementation. :(

Thanks
Selvakumar R