I have a larger (100+ points) older xcomfort installation at home and I am looking to replace it.

Likely going with a combination of z wave and WiFi devices, controlled by homey.

However, I have a problem with some devices in the basement where connectivity is poor. However, I have called ethernet there.

So my question is, are there good ways to connect an ethernet connected relay which are cost effective and is there such a thing?

The alternative I am considering is stretching a cable from where the relays are and into a better coverage zone.