Powerline Adapter

What is Powerline Adapter?

One adapter plugs into an outlet near the router and connects by Ethernet cable. The other plugs into an outlet in a far room and gives a wired port or Wi-Fi. They exchange data over the same copper that carries power. The IEEE has a standard for broadband over powerline networks, 1901, whose details are not restated here.

See Ethernet and MoCA, the coax equivalent.

Speeds printed on the box are theoretical maximums, so treat them as up to figures and expect less in a real house.

Why does it matter on a fixed wireless connection?

Old wiring, long runs, breaker panel crossings and noisy devices such as space heaters and chargers can all hurt a powerline link. Plugging an adapter into a surge strip often reduces results, since the strip filters the signal. A shop or barn on a separate meter or panel is usually out of reach.

For an outbuilding, our guide Wi-Fi to a shop, barn or guest house lists better options. The overall comparison is in powerline and MoCA adapters.

Adapters that include extra power outlets pass through the filter, so check whether yours does before plugging a heater or a charger into it.

What should I do about it?

Try a cable first if you can run one, since it needs no luck. If you cannot, a second access point or a mesh node may do better. If you try powerline, plug each unit directly into a wall outlet, test with a speed test at the far end, and keep the receipt for returns.

Powerline units do not change the connection from your roof. If the wired port beside the router is fine and the far end is not, the home wiring is the limit.