Is it possible to use telephone sockets for Ethernet connections?

Ethernet uses RJ45 connectors, while phone sockets typically use RJ11. So, no, you can’t plug a phone plug into an Ethernet socket. Really, it's best to stop looking for ways to make it work unless you have DSL service running and can connect it to a router that distributes Ethernet.

Telephone wiring can be a bit tricky. If it’s wired in a daisy-chained manner, you won't have any luck repurposing it for Ethernet. However, if each jack has its own run directly back to the main point, you might connect it to a router and see some success. Older wiring can still work, so it's worth checking how things are set up.

If you're looking for a clean, no-fuss solution, I'd recommend getting a powerline adapter. Just plug it in next to your router and connect an Ethernet cable, then take the other adapter to your console. Ensure your house's wiring isn't too old, as that could cause issues with speed.

It's technically feasible to repurpose phone lines for Ethernet, but you'll need to consider that speeds will be limited to what those lines can handle. Typically, you would have better luck just installing new cabling.

If the telephone jack setup involves only a single copper pair, utilizing it for anything other than low-speed connections might be a waste of time. However, if you want higher speeds, consider running a dedicated Ethernet cable or using coaxial if you have that option close to your console and router.

You might be able to use the existing phone lines if they are wired well. However, you'll probably need an electrician to modify things or run a new cable if your home setup is outdated. Posting some pictures of your wiring could help others give you more specific advice.

Powerline adapters are another solid choice for situations like yours. They use your home's electrical wiring to transmit data. I've had mixed success with them, but many people find they work well for extending networks without running new cables.