Apologies for hijacking this old thread, but I'm also getting the same issue.
My Unraid server is 192.168.1.8, the port forwarding is as follows:
HTTP: 180 > 80
HTTPS: 1443 > 443
I've sense checked everything multiple times but I can't find anything wrong with the below which makes me think it's something else but I'm falling short on what it could be.
Any help is greatly appreciated!