[biker1]

Based on what the OP posted, he has cat5e or cat5 cable in his walls.

Originally Posted by Malsua

That's not going to work. There are two reasons. The first being that phone wire is not ethernet cable. Ethernet cable is "Twisted pairs", and the reason they are twisted is because of electrical interference. Cat 3, cat 5, cat 5e, cat6 etc is essentially defined by the number of twists per inch. Phone cable usually has zero.

The second reason is that phone wires are joined all throughout the structure. The wires at any plug will have continuity at all plugs. Even if they used twisted pair drops throughout the structure(and they may have), there are a bunch of open ends which will act like antennae. That is no good. If it were to work, I suspect it would drop to the lowest possible speed the NIC can negotiate too.

The easiest solution in your case is powerline ethernet adapters. You can find these at Best Buy or online. You plugs these into an outlet, plug the ethernet cable from the computer to one and the router to a different one. They auto negotiate and provide a hybrid solution.

They use the electricity of your house to transmit the signal from one to the other. They work, I've installed them in a number of places over the years where WIFI signal was weak.

There are some considerations. First, they must be plugged into the wall. Plugging them into a surge strip will yield mixed results. It may or may not work, or if it works, it may be slow. Some surge strips clip noise out of the electric and this will affect the communication. It probably won't work at all if plugged into a UPS. They should be plugged straight into a wall outlet for best results. As long as the outlets are on the same electrical panel, there should be no issue at all.

One final note, the cost is related to the available bandwidth they provide. The cheapest ones will probably be plenty for most people. The more expensive ones also have a plug, so you aren't losing the wall outlet.

One at best buy is: "NETGEAR - Powerline 2000 + Extra Outlet" That's a pretty good one. I apparently can't embed a link, but go to best buy and search for that. There are others, see what they have.