Start with the free fixes: move the router to a central, raised, open spot, away from metal and the kitchen; restart it; change the Wi-Fi channel; and use 5 GHz near the router and 2.4 GHz further away. If the signal still can't get through stone or concrete walls, add a mesh system or wired access points rather than a cheap extender.
Key takeaways
- Placement is the biggest free fix.
- Concrete and stone walls block Wi-Fi heavily.
- Change the channel if neighbours crowd it.
- 5 GHz is faster but shorter range.
- Wired access points beat extenders for big homes.
01Free fixes
- 01Move the routerCentral, about chest height or higher, in the open, not in a cabinet or behind the TV.
- 02Restart itClears overloads; schedule weekly restarts if it slows down.
- 03Change the channelSee how to change your Wi-Fi channel.
- 04Use the right band5 GHz near the router, 2.4 GHz for range.
- 05Disconnect idle devicesOld phones and smart TVs streaming in the background slow everyone.
02When you need hardware
| Situation | Best fix |
|---|---|
| One weak room | Extender or powerline adapter |
| Whole house patchy | Mesh Wi-Fi system |
| Multi-storey, thick walls | Wired access points on network cable |
| Office or estate | Managed access points |
Compare options in booster vs extender vs mesh.
03Is it Wi-Fi or the internet?
Run a speed test next to the router, then in the weak room. If it's slow next to the router too, the problem is your internet package or provider, not Wi-Fi.
04Frequently asked questions
Why is my Wi-Fi weak upstairs?
Concrete floors block signal. Put an access point or mesh node on that floor.
Does a Wi-Fi booster really work?
It helps a single weak spot, but halves speed on many cheap models. Mesh or wired access points work better.
Should I use 2.4 GHz or 5 GHz?
5 GHz for speed near the router, 2.4 GHz for range and smart devices.
