DuckDNS - "rejected RFC1918 IP to public server address" LAN. Videotron with EMG2926 modem

Installation Home Assistant OS
1

Hello All,

Totally new to RPi and Hassio. Started with fresh SD card Hassio running via LAN connected to EMG2926 router. Installed DuckDNS/LetsEncrypt.

I AM able to connect with my mobile phone and iOS Hassio app on https://mydomain.duckdns.org to hassio.

I AM able to connect at home with https://hassio.local:8123

I am NOT able to connect on home network with https://****.duckdns.org

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Port forwarding is setup for 443->8123.

Problem is in the router? Any help is greatly appreciated!

2

I think you need to enable your router to LAN loopback.

3

Yes, it seems my router doesnt support loopback.

I ended up using NGINX add-on and using duckdns domain when external and hassio.local when on internal network.