Question: Do I need a MoCA filter using this setup? Can MoCA escape through the ethernet connected to the first MoCA adapter and out the ISP coax through my router?
Long story short we just had our basement finished and the guy didn't do what he was supposed to; we found out our original ethernet run in the basement ceiling to the living room TV area had some sort of faulty wiring and could only get 10 Mbps on the other side if it worked at all (it was only connected to a pc we don't use often so either no one noticed or his crew broke something or idk, whatever it doesn't work now). He didn't fix this like we asked and has ghosted us for a while now on other stuff he left unfinished/never followed up on.
There's no real way to fix or even rerun new cable without cutting up some brand new ceiling, but instead of directly using the ethernet I was thinking we could use the existing coax that was run for a cable box (that we don't have anymore) via MoCA to get wired internet back to the entertainment center.
So going back to the question, do I need a MoCA filter (which I'm 90% sure we don't have, there's an attenuator but no PoE filter, and I heard can cause loss of performance) for this isolated coax cable run that will only be doing this one thing and has no connection to the outside other than the ethernet connection to the router? If it matters at all we have Xfinity internet that directly goes into our Netgear C7800 router/modem no splitters, nothing.