ASP.NET Identity 2 Remember Me - User Is Being Logged Out

Question

I am using Identity 2.1 in my MVC5 app. I am setting the isPersistent property of the PasswordSignInAsync to true to enable 'Remember Me':

var result = await SignInManager.PasswordSignInAsync(model.Username, 
  model.Password, 
  true, 
  shouldLockout: false);

But if I stay logged in overnight, then when I refresh the page in the morning, it logs me out and I have to sign in again. How do I prevent automatic logging out until the user manually logs out?

Is it something to do with the Cookie Authentication that identity uses? I don't really understand the CookieAuthenticationOptions that are set in Startup.Auth.cs.

new CookieAuthenticationProvider
{  
   OnValidateIdentity = SecurityStampValidator
      .OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
      validateInterval: TimeSpan.FromMinutes(30),
      regenerateIdentity: (manager, user)
      => user.GenerateUserIdentityAsync(manager))
}

Answer 1

I think you should read this article . There are two different intervals: ValidateInterval and ExpireTimeSpan. And in your case i think you should change the expireTimeSpan, not the ValidateInterval.