Can't access Nextcloud after completing AIO install

I followed the AIO steps to setup the Nextcloud docker container. I had done the initial domain check but it failed to access my domain on port 443. I used the port checking tool as stated in the notification and it said that port was up on my IP so I added the command to skip the domain check. I have port 443 open on my firewall and have it set to forward on my router. Is there anything I should try or look into to determine why I can access my AIO instance via the local address ( but not my public DNS address? I saw something about having to configure your DNS, I don’t think I did that… what does that consist of?