my ISP only allows me to forward the same port. So I can forward 8123 internally to 8123 externally but I can’t forward 8123 to 443 for example. Is there a way around this issue? Can i configure Hassio to run on 443 internally too instead of 8123?
Yeah, this is done on your router and you should have full control. If you are using an ISP router, buy your own router and hand back the one your ISP provided. They shouldn’t be handling your routing anyways, you never know what they are doing if they have full control of your router.
The duckdns port for the Internet is set on your router. Mine works fine on 8123 to duckdns. I changed nothing.
It only appears to check (ping?) to find your current ip address.