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Wi-Fi boosters and extenders

When the Wi-Fi signal doesn't reach a distant room or an upper floor, a device that picks it up and passes it on can help. Wi-Fi boosters and extenders widen the range of the wireless network to places the router alone doesn't cover. They include simple plug-in repeaters, more powerful models with antennas and sets for seamless coverage. They differ in the supported standard, the number of bands and how they connect to the router. You can choose based on the size of the dead spot and the speed you need from the network.

Wi-Fi boosters and extenders

The home Wi-Fi signal often weakens behind thick walls, in distant rooms or on the next floor. That's exactly where Wi-Fi boosters and extenders help, taking the existing signal from the router and broadcasting it again to areas with weak coverage. They're valued by people in larger flats and houses, where the connection drops or the speed falls at the edges.

The simplest models plug straight into the socket and extend the signal in a moment, more powerful variants with external antennas cover a larger area. They also differ in how they connect to the router — most communicate wirelessly, some also use a network cable or powerline transmission over the electrical wiring. Unlike mesh systems, they usually create a separate network that you have to switch to manually.

It's worth watching the supported standard and the number of bands. Dual-band models with the 2.4 and 5 GHz bands keep a higher speed than single-band ones, where the throughput is halved when forwarding. Placement matters too — the extender belongs roughly halfway between the router and the dead spot, where the signal is still strong enough.

When choosing, start from the size of the space you want to cover and the speed of your connection. For a single weak corner a simple plug-in repeater is enough, for a larger house with several dead spots consider a mesh system instead, which works as one continuous network. Check which Wi-Fi standard your router supports so you don't needlessly hold back the speed. A well-placed extender removes dropouts and ensures a stable connection even where the signal wasn't enough before.