Open Manager Enterprise KVM appliance closed ports

Hi, I have spun up the OME KVM appliance and it works up to a point. It pings, I can access the ncurses interface in terminal in which I have configured the network, dns resolvers etc. That looks ok. The status of services is all in green. So everything looks ok. Except that the firewall settings seem to close access to all useful ports but keep some less useful ports open. This results in the web interface being totally inaccessible and the instance useless. This is what a port scan reveals:

~$ nmap xxx.xxx.xxx.xxx -P0
Starting Nmap 7.80 ( https://nmap.org ) at 2023-04-04 10:04 GMT
Nmap scan report for hostname.xxx (xxx.xxx.xxx.xxx)
Host is up (0.58s latency).
Not shown: 995 filtered ports
PORT STATE SERVICE
22/tcp closed ssh
80/tcp closed http
139/tcp open netbios-ssn
443/tcp closed https
445/tcp open microsoft-ds

How do I open port 443 to be able to access the web interface? Is it not supposed to be open by default? Am I missing something I can do without breaking open the image and manually to change firewalld settings in the file system?

Best,

Mo