I've been trying to figuring out how to do this, found advice for other Sagemcom models but not this one. uPnP is enabled. I've tried added Playstation to port forwarding but it doesn't seem to work - I may not be doing it properly.
Is it even possible to set Open NAT type for PS4 using this router? I received this router from Optus for cable internet, but I have my own gaming router. Maybe I can just ditch this router and use my own, not sure how it would affect my connection to cable.
I'm having the same issue with my Xbox One X.
I just got the Sagemcom F@ST 3864V3 with the NBN.
When I connect my xbox via ethernet it initially works, but if I put it to sleep/turn it off it can't reconnect. I get the message on my xbox "NAT Type: Unavailable" The only way I can get it to work is by resetting the router.
I also tried port forwarding but it doesn't seem to work - I may not be doing it properly.
I can connect via wireless with no issues.
This is getting really frustrating.