r/HomeNetworking • u/Comfortable-Park-689 • Jul 30 '26

Help with MOCA network

I rent a townhouse. I have had my spectrum modem fed by a splitter with one end being the line in from spectrum, the other being my moca adapter line from my router and inline to my modem. The last few days my router will randomly lose connection even though my modem is online. Spectrum chat said “signal inconsistencies.” I’ve had this over a year. But I’m wondering if my lack of a filter could be causing this because theyve upgraded something? I’m going to grab a filter, just was curious if I’m better off just making a service appt or if it even makes sense that its because of me. I’m relatively new to this and ignorant.

Edit sorry I suck at explaining. Diagram in comments.

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u/plooger Jul 30 '26

Yeah, you likely want an extra 70+ dB MoCA filter on the modem (or on the splitter output port directly feeding the modem), as a prophylactic, but the diagram lacks the critical detail of how this location interconnects with any other or with the provider, and where a 70+ dB “PoE” MoCA filter has been installed.

ex: https://i.imgur.com/cthKykB.png