Sjekk https://helpx.adobe.com/adobe-media-...ia-server.html

Der står det:
Some firewalls reject traffic that doesn't use the HTTP protocol. This behavior can prevent communication over RTMP even if port 1935 is open. Consult the documentation for the firewall to determine how to configure it to allow RTMP traffic.

Kanskje du må rute http (port80) også til den lokale ip en?
----
kanskje no info her også
https://openmyip.com/Genexis-HRG1000-router-setup