Our cable company recently upgraded their connections to our residence from coax to fiber-optic. As a result, the modem and router had to be moved into the basement from an upstairs room, impacting Wifi speeds, especially as it was just a cheapish router.

AFAICT, they didn’t remove some of the coax wiring throughout the house. They did remove it from a few rooms, but not all of them. Would this be a good case for Ethernet over coax? Presumably I would just run Ethernet from the modem, into the coax adapter in the basement and then upstairs, and plug the Ethernet upstairs into the router?

The main run of coax in the basement is still intact, and it’s running from the basement into the same room that the modem was previously hooked up in. Glad they left that bit.

Thanks…