I have successfully configured duck DNS and verified the Dynamic DNS is being resolved into my public IP address. I also verified local access to the HA server at 192.168.1.11:8123 which was successfully also. The problem is when I try to access my dynamic DNS (e.g. xxx.duckdns.org:8123), the page does not load. Here is how I have configured port forwarding on my router. My router is connected to an Arris cable modem/router that does not have a webGUI.