Improving home Wi-Fi: faster surfing without dead spots (2026)
Router placement, frequency bands, mesh and repeaters — get the maximum out of your line before booking a faster plan.
Often it is the Wi-Fi, not the tariff
Many people book a faster tariff even though the problem is not the line but the Wi-Fi in the house. Only when the wireless network actually delivers the bandwidth to the device does a faster connection pay off.
A simple test: measure the speed once via LAN cable directly at the router and once via Wi-Fi at your usual spot. If the cable value is high but the Wi-Fi value low, the problem is the wireless network.
The good news: Wi-Fi problems can often be fixed for free or with little effort — without a more expensive tariff.
Router placement is decisive
Radio waves spread best unobstructed. A router in a cupboard, behind the TV, in the basement or right next to metal and water pipes loses a lot of range.
Place the router as centrally, freely and high up as possible. Thick walls, underfloor heating and large mirrors dampen the signal — the fewer obstacles, the better.
Just a few metres and a better position can make the difference between a dead spot and stable reception, without buying anything.
Use the right frequency bands
Modern routers broadcast on two bands: 2.4 GHz reaches further and penetrates walls better but is slower and more prone to interference. 5 GHz is much faster but has less range.
For devices near the router (laptop, TV) 5 GHz is ideal. For distant rooms or smart-home devices, 2.4 GHz is often more stable. Many routers pick the best band automatically.
In densely populated areas, changing the radio channel can help, because neighbouring Wi-Fi networks otherwise slow each other down.
Mesh or repeater in large flats
If a single router does not cover the whole flat, there are two solutions. A repeater boosts the existing signal — cheap but often with a speed loss and a separate network name.
A mesh system uses several stations that form a single, seamless network. Your device automatically switches to the strongest station — the more comfortable, if pricier, solution for large or winding flats.
Where possible, a wired connection (LAN or via the power line with powerline) is the most stable option — especially for TV, console or home office.
Optimise first, then think about the tariff
Proceed in order: improve placement, check bands and channel, add mesh if needed. Measure after each change whether the Wi-Fi value improves.
Only when the Wi-Fi delivers the full line speed to the device and that is still too little for you does thinking about a faster tariff make sense.
Then check in the comparison whether a higher speed is even available at your address — and whether the premium is worth it for your actual needs.
Practical tips
- Test via LAN vs. Wi-Fi whether the problem is the line or the wireless network.
- Place the router centrally, freely and elevated.
- Use 5 GHz for devices near the router, 2.4 GHz for distant rooms.
- In large flats a mesh system is more comfortable than a repeater.
- Connect fixed devices by cable where possible.
Common mistakes to avoid
- Booking a faster tariff although only the Wi-Fi is weak.
- Placing the router hidden in a cupboard or behind the TV.
- Staying on 2.4 GHz always, although 5 GHz would be faster.
- Using a repeater and wondering about the speed loss.
- Running fixed devices over Wi-Fi where a cable would be more stable.
Checklist before you compare
- Compared speed via LAN and via Wi-Fi.
- Optimised router placement (central, free, elevated).
- Used the right frequency band per device.
- Checked the radio channel in case of interference.
- Added mesh or a cable connection if needed.
- Considered a tariff switch only after optimising.
Frequently asked questions
Why is my Wi-Fi slower than my tariff?
Because the wireless network does not deliver the full line speed to the device. Placement, frequency band, obstacles and interference all play a role.
Where should the router be?
As central, free and elevated as possible — not in a cupboard, basement or behind metal and water pipes.
What is the difference between 2.4 and 5 GHz?
2.4 GHz reaches further and penetrates walls better but is slower. 5 GHz is faster but has less range.
Repeater or mesh — which is better?
A repeater is cheap but often loses speed. Mesh provides a seamless network and is more comfortable for large flats.
Do I need a faster tariff?
Only once the Wi-Fi delivers the full line speed and that is too little for you — and only if more is available at your address.
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