Looking to upgrade Moca version

Yes, I believe what you are doing would work -- you DEFINITELY want to change the TiVo to be a client, so you don't have 2 MOCA networks operating on the same coax.

I assume you have other MOCA 2.x capable devices downstream that you want the higher speeds on (e.g., another MOCA->Ethernet bridge running computers, a NAS etc.). Other TiVos (other than the Bolts) are MOCA 1.x devices, and don't benefit from higher speeds. If you're just running home theater devices, you're likely not going to see any performance boost.

For example, in my house I have 4 locations with FiOS routers operating solely as MOCA bridges for my home theater and other devices that don't have MOCA (HT receivers, blu-rays, streaming players like Roku/Apple TV, my printer/VOIP device), and MOCA 1.x is fine for all of them. My host router is MOCA 2.0, and I haven't bothered to upgrade any of the older 1.x bridges since nothing attached to them would benefit from the additional speed.

 

Thoughts...

• At current prices, a goCoax MoCA 2.5 adapter (WF-803M) would seem to be the best value.

• The proposed configuration wouldn’t work, as the Roamio Pro would have no network connection — absent an Ethernet connection, and with the MoCA adapter RF pass-through port severely attenuating MoCA signals. (MoCA adapters use internal diplexer filters, rather than a simple splitter, to direct signals, so the adapter’s RF pass-through port severely attenuates signals above 1002 MHz.)

• Why? Do you have MoCA needs beyond the TiVo setup? (‘Cause MoCA 2.5 won’t do anything for the connection between the Pro and XL.)

 

Good call almost regardless of the spec chosen for replacement MoCA bridge. (Our Pro tends towards inconvenient reboots.)

The Pro could connect as a MoCA client, with its Ethernet port open/unused; however, it would make more sense to disable MoCA on the Pro and network it via its GigE port if all the other MoCA nodes are bumping up to 2.0 or better.

 

You remember correctly, but the point being made failed to make a connection.

The issue with the orig diagram was simply in how it depicts the Pro’s coax connection ... if planning to configure the Pro as MoCA client. You would need to use a 2-way coax splitter to connect the MoCA adapter and Pro, as any MoCA adapter’s RF pass-through port would severely attenuate MoCA signals.

However, the MoCA adapter RF pass-through would offer slightly less cable TV signal loss, relative to a splitter, if the Pro were to be networked via its GigE port rather than as a MoCA client.

 

krkaufman is the undisputed expert on this topic, but if it were me, I would make one of 2 alterations to your proposed set-up. I would either adopt krkaufman's suggestion to connect your Roamio Pro to the router directly via Ethernet, or I would instead swap out the 2-way splitter for a 3-way unbalanced MoCA splitter, sending the higher signal to the cable modem, and the 2 more attenuated outputs to the MoCA bridge adapter and the Roamio Pro. Both of these options avoid use of the RF pass-through port. Which option I would choose would depend on where the physical locations of all these devices are, and how easy it would be to hook up one option versus the other.

 

It isn't applicable for the Roamio Pro as the Roamio Pro has but a single coax port, unlike many MoCA adapters.

Yes, once you have the replacement MoCA bridge working.

Yes:

Re: this suggestion...

... I could go either way (pass-through vs splitter), but you can experiment with what happens to the Roamio Pro's TV signal if/when the MoCA adapter's power is lost or cycled and the Pro is connected via the MoCA adapter's pass-through port. If you find the DVR's tuning glitches when the MoCA adapter power is interrupted, you may want to opt for the splitter configuration.

And, if the splitter approach is taken, you can use a couple separate 2-way splitters to get all 3 devices connected (modem, MoCA adapter and Pro), or heed @sakaike's suggestion and, instead, use a single unbalanced 3-way splitter, for simplicity and to save a bit of signal loss associated, otherwise, with the jumper coax between the two 2-way splitters.

 

This confusion can sometimes happen when people get very focused on the MoCA/networking side of things and forget that the Roamio Pro needs the coax connection for the TV signal, not just when doing MoCA. (i.e. The Pro needs the coax connection no matter how it's networked.)

 

Exactly correct -- presuming an Ethernet-only network connection for the Pro.

Add a little yellow arrow b/w the Pro and router, and the schematic is correct ... providing MoCA is disabled in the Roamio Pro.

 

Depends on what you mean by "issues" and "have to." The existing splitters shouldn't prevent a MoCA connection, but may inhibit optimum performance.

MoCA 1.1 requires just 50 MHz at the lowest end of the MoCA frequency spectrum to function (from 1125-1175 MHz), so a MoCA 1.1 signal won't experience much different attenuation than the higher cable TV/Internet frequencies via a cable TV-rated splitter. However, a MoCA 2.5 network requires up to 10x the spectrum, bonding 5 100 MHz channels, consuming nearly the entire MoCA Extended Band D range (1125-1675 MHz), so it becomes more critical to use splitters with documented (MoCA-friendly) behavior across this range, and ideally optimized for MoCA in terms of lowered output port isolation in the MoCA frequency range.