title: External Login with Google Authentication
body: <p>I am using Asp.net core for develop web application with google Authentication Login </p>
  
  <p>I succeed to manage up to get google credential and register the User at very first. But the problems is even user register to the Application with Google Credentials,it always ask for register again and again for the application. </p>
  
  <p>I found that it happen due to ExternalLoginSignInAsync function calling and it always give false for that ,I changed these parameters and tried several times 
   isPersistent:false/true) and bypassTwoFactor : true/false I have test above all variations. But it always give false for result .As well as I tried with Google Authentication with Normally Registered User login.it also gave me same result</p>
  
  <pre><code>   public async Task&lt;IActionResult&gt; OnGetCallbackAsync(string returnUrl =null,string remoteError = null)
  {
              returnUrl = returnUrl ?? Url.Content("~/");
              if (remoteError != null)
              {
                  ErrorMessage = $"Error from external provider: 
                  {remoteError}";
                  return RedirectToPage("./Login", new {ReturnUrl = returnUrl });
              }
              var info = await _signInManager.GetExternalLoginInfoAsync();
              if (info == null)
              {
                  ErrorMessage = "Error loading external login information.";
                  return RedirectToPage("./Login", new { ReturnUrl = returnUrl });
              }
              var result = await 
                 _signInManager.ExternalLoginSignInAsync(info.LoginProvider, 
                 info.ProviderKey, isPersistent:false, bypassTwoFactor : true);
  
              if (result.Succeeded)
              {
                  _logger.LogInformation("{Name} logged in with {LoginProvider} 
                  provider.", info.Principal.Identity.Name, 
                  info.LoginProvider);
                  // return LocalRedirect(returnUrl);
                  return LocalRedirect("/Customer/ProjectsApiKey/");
              }    
  
  </code></pre>
  
  <p>Could you please any anyone who has already resolved this this problems help me to.I am expecting what should I do for check user already registered or not with Google Authentication</p>