Quick hint: to enable IIS Express in VS to work with HTTPS, change “SSL Enabled” to true in project properties, and change project URL in Web tab to something like “https://localhost:44300”. The port MUST be 44300 or higher.
No more “This site can’t be reached
The connection was reset.
Try:
Checking the connection
Checking the proxy and the firewall“
A good read: Working with SSL at Development Time is easier with IISExpress