Moca adapters

Either 0, 1 or 2. It depends on the model.

The Mini does not need one as it has built-in.
The modem/router may or may not need one if its built-in and not enabled.
Premiere 4 (4 tuner model) has it built-in.
Roamio 6 tuner models has it built-in.
Some Bolts also.

For example:

You would just need 1, at the modem/router. (if its not built-in, enabled within.)

 

As mentioned in the prior reply, the 4-tuner Premiere’s have built-in MoCA connectivity; however, the 2-tuner Premiere models lack any MoCA functionality. (Just wanted to be explicit, as “Premiere 4” is sometimes incorrectly used to describe a 2-tuner Premiere, confusing the “Series 4” and “Premiere 4” identifiers.)

So a couple questions to lock down your requirements...

* How many tuners does the Premiere have? Or what is its full model #?

* Is the Premiere located where it could be connected via Ethernet to a LAN port on the router?

 

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Ok, then it is definitely capable (if not broken) of natively connecting to a MoCA network*, rather than requiring a co-located MoCA adapter to make the MoCA connection on its behalf (like you’re currently doing with Wi-Fi and the separate Wi-Fi adapter),

* Older TiVo software phrased the MoCA ~client~ configuration option as “Connect to a MoCA network”; later versions label it as “MoCA client,” I believe.
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So, given separate modem and router devices (precluding a built-in MoCA bridge) and MoCA-capable TiVo boxes, you’d require a single MoCA adapter total (as above)... installed at the router location to function as your main MoCA/Ethernet bridge (effectively as the MoCA access point), connected to a LAN port on the router and to the shared coax to complete the bridge — possibly requiring a MoCA-compatible 2-way coax splitter to get both the modem and MoCA adapter connected to the coax.

Additionally, you’d need to review your coax plant to make sure that the targeted locations, critically, are all connected to the coax plant and to confirm MoCA compatibility of whatever component(s) make their connection possible; and, further, to get a “PoE” MoCA filter installed on the incoming cable line prior to the first split of the signal, to secure the MoCA network inside the home and provide it a performance/efficiency boost.

Once the above are done, it should be a simple matter to connect your MoCA-capable TiVo boxes to their coax wall outlets and configure them as MoCA clients.