Advertisements It's recommended to terminate the unused port. (Noting that it wasn't so much of a concern to me, apparently, that I didn't highlight it blue, like the MoCA filter needed on the tuning adapter.) Some are, some aren't. Right now that "3-way" is merely a placeholder, as we don't know *what* is connecting those rooms together. They'll definitely have to make a choice between the cable modem and the BOLT, though most recommendations I've seen are to split the signal to the modem, first. They'll have to see what works for them.