There's more to it than that. I'm done re-re-re-explaining it all, as I already have, in several threads (as well as the countless other people, willing to help others). PoE filters & MoCA are two subjects that have been beaten to death, thoroughly explained, and even diagrammed-out, in many threads. I'll repeat this much, again: Just because it's called a "Point-of-Entry" or "PoE" filter, doesn't limit it to only being useful at the point of entry. It's just the one place it was originally specifically designed for. In my cable market with SDV deployed, which requires Tuning Adapters, Cox wants a PoE filter on the input to each Tuning Adapter, to keep the TAs from malfunctioning, as they don't have MoCA PoE filters built-in, and tend to malfunction when exposed to MoCA signals. Other devices can also malfunction if not designed to filter the MoCA frequencies out, or to pass them through, in the case on an "in-line" configuration with IN and OUT ports. I just bought a new cable modem, which specifies that it has a MoCA filter built-in, while my old modem does not. Since I choose not to use MoCA, I only have to have a PoE filter at the Point-of-Entry, and it simply helps insure my neighbors' MoCA signals don't get into my residence's coax. Without one, my Tuning Adapters tend to lock up, or otherwise malfunction. Technically, I shouldn't need one, but I can't force my neighbors' to put them in. An apartment building/complex or other high-density housing situation can be a real MoCA nightmare. IMO, there are so many good, pre-existing, questions and complete/thorough answers, that there should be a lock-out for any further threads on those subjects (other than extremely unusual issues, which are new material, and merit another thread). The "create new thread" process even does an automatic search for threads similar to the subject matter, and prompts the user to be sure a new thread is necessary. I'm not saying I'm done helping. I'm saying all the basics are out there (here), as well as much of the more advanced parts, often in triplicate, at minimum.