Reddit reviews InstallerParts 66 Punch Down Block

Hard to say since you're only showing a single piece of the connection. You're also using some incorrect terminology that is making it difficult to understand what's going on. Since there is only a single cable coming from your demarc, there should be something in your home where all the jacks converge, hopefully a 66block. You need to switch the wires that send the DSL from the current jack, to the jack you want it at, at which time you can plug in a Modem (not a router). From the modem you connect a router (some of these are combined as a single device, you need to confirm if yours is or not).

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What you should really do, is have a DSL jack in your basement (or some central location) and run ethernet cables to that location so you can set up a proper network instead of having to move a Modem/router, like ever.

> The real question is why home builders are wiring for POTS in the first place.

Quite often on installs I was doing VoIP over these wires, and/or alarm systems. Also, ADSL and VDSL signals come in on a single pair of copper in areas that don't have fiber (which is most of my area), and good quality POTS wiring is sufficient to get the signal to the modem.

In brand new construction my guess is that the wiring is put in with the expectation of Ethernet, but they cut corners and costs by only connecting a single pair at phone jacks and leaving a 66-block instead of a proper junction or termination in the basement. Heck, I prefer a nice bundle of loose wires with plenty of slack to a 66-block.