I have setup CRM/SQL on one server and ADFS on a second server. ADFS is on 444 and CRM on 443/80. When I am on the LAN and navigate to https://[orgname].[domain].com it redirects me to
https://adfs.[domain].com:444 and shows me the CRM login screen.
However, when I am on the WAN and navigate to
https://[orgname].[domain].com the browser stays at that address and give me the error "Internet Explorer cannot display the webpage". Note that the router forwards port 443 (and 80) to the server with CRM and 444 to the server with ADFS. I believe
this is how it should be.