Slow Wi-Fi is annoying. Often the problem is not the tariff or the router but the settings and placement.
1. Place the router correctly
Put it in the centre of the flat, at height, not behind a cupboard or under a table. Walls, especially load-bearing ones, weaken the signal. Keep it away from microwaves and cordless phones.
2. Update the firmware
Manufacturers fix bugs and improve performance. Check for updates in the router’s settings.
3. Choose a free channel
In apartment blocks, dozens of networks work on the same channels and interfere with each other. In the router’s settings you can choose a less crowded channel.
4. Use the 5 GHz band
The 5 GHz band is faster and less congested but has a shorter range. 2.4 GHz is slower but penetrates walls better. Connect nearby devices to 5 GHz.
5. Protect the network
Set a strong password and a modern type of encryption. Then neighbours will not use your internet and slow it down.
6. Add an extender
If the flat is large, use a repeater or a Mesh system.
7. Restart the router
Sometimes a simple restart helps. Do it once every few weeks.
Before buying a new router, check the speed at different distances from it: this will help you understand where the problem is.
