Extender, Mesh or powerline: how to extend your Wi-Fi
When router placement is no longer enough, you need extra equipment. Four families of solutions exist, with very different results.
Comparison
| Solution | Principle | Speed obtained | Simplicity | Ideal for |
|---|---|---|---|---|
| Extender | Picks up Wi-Fi and rebroadcasts it | Often halved | Very simple | A room slightly too far |
| Mesh | Several coordinated units | Good and even | Simple (app) | Large flat, villa |
| Powerline | Network over electrical sockets | Depends on wiring | Simple | A floor, a room isolated by concrete |
| Wired access point | Unit connected by Ethernet | Maximum | Needs a cable | Anywhere a cable is possible |
Wi-Fi extender
It plugs in halfway between the router and the weak area. Its drawback: it usually uses the same radio to receive and rebroadcast, which halves speed. It also often creates a second network name. Fine for a bedroom with light use, not for enjoying fast fibre.
Mesh system
Several units talk to each other and form one network. Your phone moves from one to another automatically. "Tri-band" models reserve a band for the link between units, preserving speed. It is the most comfortable solution for large homes and several floors. If you can link the units by cable (Ethernet backhaul), performance becomes excellent.
Powerline
It carries the network over the electrical circuit. Handy for crossing a concrete floor. Performance depends heavily on the wiring: power strips, separate circuit breakers and noisy appliances can reduce it. Always plug powerline adapters directly into a wall socket. Some models include Wi-Fi.
Wired access point
An Ethernet cable from the router to a Wi-Fi unit placed in the right spot: the professionals' solution. No relay speed loss, minimal latency. A flat cable can run under a door or along the skirting.
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How to choose
- Small flat, one poorly covered room: move the router first; otherwise an extender or a small Mesh unit.
- Large flat or villa: a Mesh system of 2 or 3 units, Wi-Fi 6 at least with fibre of 200 Mbps or more.
- Several concrete floors: wired Mesh, or powerline between floors.
- Gaming or remote work in one room: a direct cable or a wired access point.
For the standard to choose, see Wi-Fi 6 and Wi-Fi 7, and to position each unit, where to put your router.
Sources and further reading
Frequently asked questions
Does an extender increase speed?
It increases coverage, not speed, and often lowers maximum speed, but it can turn a dead zone into a usable one.
Does Mesh work with my provider's router?
Yes, usually the first unit plugs into the router over Ethernet. Depending on the case, you can turn off the router's Wi-Fi to avoid duplicates.
Does powerline work in every home?
Not always. If sockets are on different circuits or phases, performance can be poor.
The SpeedFibre team Guides written and reviewed by a telecom engineer specialised in fibre optics (FTTH), with more than 8 years of hands-on network maintenance and measurement. Editorial policy.
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