My money is on the technician being wrong, and your MoCA signals are now leaking out onto the cable provider premise, and possibly over to your neighbors' homes. That said, the "PoE" MoCA filter is not just for security but also for performance improvement of the MoCA network, so the MoCA filter should still be installed on the input of the main splitter. (i.e. back where it came from)

Just to confirm that the technician didn't know what he was talking about (likely confusing that their equipment doesn't use MoCA, anymore, with the fact that your TiVo gear still DOES), can you provide the brand & model #s for the "two-box solution."

 

I do know that my house is the last tap off the node box, and that none of the five other homes on this feed are connected to Spectrum. However, they gave me an Arris TM1602 Modem/TA and a Sagecom F@st 56 router.

 

I do know that my house is the last tap off the node box, and that none of the five other homes on this feed are connected to Spectrum.

They're not physically "connected" to Spectrum's coax plant? Or just aren't currently subscribed to Spectrum service?

So long as they have a physical connection to the Spectrum coax, they could potentially connect to your internal home network via the unprotected MoCA network.

 

OK, standard cable modem and router, not some sort of new fiber setup ... so, yeah, technician was talking out his bum. Without the “PoE” MoCA filter in place, your MoCA signals are leaking out onto the cable premise, rather than reflected efficiently back onto your coax lines.

 

I've had a Bolt and two Mini's working for the last 19 months, using MoCa setup and filter. Two weeks ago I had a problem with internet, and Spectrum's tech decided to replace my Technicolor eMTA with their two-box solution. He also said he needed to remove the MoCa filters to test the signal...I freaked. He said their network no longer needs MoCa filter to prevent leakage. I reluctantly agreed, filters in hand, and soon after some work on my tap box all was working again.

So here I am two weeks later - Filters sitting on a shekf - and Tivo service is fine. When I look at Network Setup, it still says MoCa...so is this the new normal?

Thanks for feedback!

As you already have been advised, take one of those MoCA filters off the shelf and install it on the input of the first splitter to enter your home. "Techs" are mostly high school graduates with OJT, absolutely nothing more, and unfortunately mostly lack any kind of intellectual curiosity to learn anything more than absolutely necessary for their jobs.
The actual story is that some time ago, Spectrum eliminated Whole Home DVR service which of course needed and relied on MoCA, hence, the brain dead were told that they no longer needed to use the previously necessary MoCA filters and that is where their thought processes ground to a halt.
They don't need one for their equipment, and therefore no one else needs one even if they are using MoCA equipment of their own. The flawed logic and general ignorance is common judging from several other similar posts on this and other forums.
Right now without a filter, you are potentially sharing every single bite on your entire nrtwork with one or more of your neighbors and decreasing the MoCA signal on your own network. Since you live where the stupids rule and may have your filter removed by some other "tech", you might want to consider using MoCA's encryption if all of your MoCA equipment supports it.