Logging out after a few minutes despite authentication in Owin

Question

I use owin and although I have set the expired time defined in Startup.cs as 1 day, it exits itself after 15 minutes when the site is open in browser.Besides, when I run it on my localhost, I do not encounter such a problem.When I right click and look at the cookies in the applications, the expires actually looks correct.application />cookies

 

 

app.UseCookieAuthentication(new CookieAuthenticationOptions
{
ReturnUrlParameter = CookieAuthenticationDefaults.ReturnUrlParameter,
ExpireTimeSpan = TimeSpan.FromDays(1),
SlidingExpiration = true,
CookieHttpOnly = true,
AuthenticationType = "Cookie",
LoginPath = new PathString("/Admin/Login"),
Provider = new CookieAuthenticationProvider
{
OnResponseSignIn = context =>
{
context.Properties.AllowRefresh = true;
context.Properties.ExpiresUtc = DateTimeOffset.UtcNow.AddDays(1);
}
}
});
app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);

My sign in function is as follows,

var claims = new Claim[]
{
new Claim(ClaimTypes.NameIdentifier,model.id),
new Claim(ClaimTypes.Name,model.username),
new Claim(ClaimTypes.Role,"Admin")
};
var identity = new ClaimsIdentity(claims, "Cookie");
Authentication.SignIn(new AuthenticationProperties() { ExpiresUtc = DateTime.UtcNow.AddDays(1), IsPersistent = true }, identity);