Used LetsEncrypt to generate a certificate.
We are using port 9443 for https. If I go to my subdomain portal, it works fine, and the connection is established and secure (see pic). But cannot login.
Using the same credentials via http/port 80, works fine, and can log in without any problems. I can even change the http to https and port 9443, once loged in, and the session works via https... Why can't I log in using https?