Hmmm I’m not sure but I’m thinking yes. I have gigabit device and I also have Fios tv. The way mine is setup (and this is the second version of setup they did to make my V2 streamtv box work properly. )
the Ethernet comes out of the ONT so does coax. The Ethernet goes to the WAN on the router. The coax goes to the wall outlet. Out of the coax wall outlet is a coax cable that goes into a 3 way coax splitter. One of the three coax cables runs to to router. The second goes to the VMS4100ATV box. The third coax goes to a special MoCa adapter especially for the Verizon V2 streamtv box. If you don’t have the stream box and the vms4100atv box like I do And have just a 4100 setup box it may differ. You probably won’t need a MoCa adapter in that case. Atleast definitely not the special one made just for this streamtv box. You probably would only need a two way splitter in that case instead of the three way. If you have a Verizon extender as well that is going to add another two way splitter into the equation.
this is a link w some diagrams and instructions of using that special MoCa adapter
https://www.verizon.com/support/residential/tv/equipment/stream-tv-landing/moca
in my case the streamtv box did not work properly with just a two way splitter and no MoCA adapter so they removed the two way splitter and replaced it w a 3 way splitter and installed the MoCA adapter.
