TP-Link TL-SG105S-M2 | 5-Port Multi-Gigabit 2.5G Ethernet Switch | Unmanaged Network Switch | Ethernet Splitter | Plug & Play | Desktop/Wall Mount | Silent Operation

Would something like this work? The ONT cable going straight to that and anything else I need I can plug it into this thing, and I'll just not use the Sagemcom at all