said by Fernboy61:
From what I've read somewhere on the forum, the latest firmware update on the sagemcom prevents us from initializing PPPOE connections from our own routers (Not sure at all about that but I've seen it somewhere). I've come to using the Sagemcom to forward my ports and I'm using my own router only as a WiFi access point. This setup works well for me.
I'm still able to use the Sagemcom with 2 different devices establishing their own PPPOE sessions and still able to forward ports without issues.