Slow or dropping Wi-Fi is one of the most common problems at home and in the office. Before changing your box or plan, here are the real causes and what actually works.
1. Where the box sits
A box on the floor, inside furniture or in a corner loses a lot of range. Placed high, in the open and fairly central, it covers far better.
2. Too many devices, same band
Modern boxes broadcast on 2.4 GHz (range) and 5 GHz (speed). Using 5 GHz near the box and 2.4 GHz further away often improves things. Devices that saturate bandwidth (downloads, 4K video) slow everything else.
3. Walls and distance
Concrete, thick walls and long distances kill the signal. In a large home, a mesh Wi-Fi system or a well-placed extender fixes most dead zones — better than a single badly positioned repeater.
4. Interference and channels
In a Paris apartment block, dozens of networks overlap. Changing the Wi-Fi channel (or letting the box choose automatically) reduces interference.
5. The box or line itself
If everything is slow everywhere, even next to the box, the issue may be the box, the cabling or the line. A wired test (Ethernet cable) tells Wi-Fi apart from the connection.
Need help?
I diagnose and optimise Wi-Fi at home and for businesses in Paris: placement, mesh, channels, security. See business IT support. Request a quote or 07 66 84 52 57.