Create certificate for windows wsus

I’m trying to create a certificate for a WSUS server. I have ports 80 and 443 opened on all firewalls but it still says it can’t connect to the http://fqdn/.well-known/acme-challenge/configcheck.

I changed the port for the default website and added additional bindings for port 80 and 443 for the wsus administration web site

I’m using version 4.1.6 of the app