My Drupal site gives a 404 error in firebug, even though the login form is showing. Also nothing happens when you click Log in-- the page just refreshes and login DOES NOT happen. This only happens in https. There is no error in HTTP and the login is working.
I have installed the secure_login module hoping it might help, but no change. Basically, it just forced the login page to redirect to https.
I thought maybe the https is not configured correctly, but HTTPS is working fine in all the other pages. My site works in both http and https. The only problem is the login form.