If one room barely gets WiFi while another is fine, it's almost never “bad internet” — it's a specific, traceable problem in your home.

Illustrative example — fictional plan, not a real home
hallway Living room Kitchen Bathroom Bedroom 1 14 m² Bedroom 2 router Signal strength (example) good medium weak
Your problem is most likely one of these:
Distance
the room is simply far from the router
Walls and floors
concrete and reinforced concrete attenuate signal the most
Poor router position
a cabinet, a corner, the floor
Too few access points
one router isn’t enough for the whole floor area
Interference
a congested channel, neighbouring networks

How do you know which one it is?

Instead of guessing, answer a few questions about your home — floor area, number of storeys, wall material, and router position. Based on that we estimate how high the dead-zone risk is and what will actually help.

Check your dead-zone risk in 60 seconds. Five short questions about your home — a concrete result and pointers at the end.

Check the WiFi risk calculator

What helps most — in order

  1. Change the router’s position. It’s free and often the biggest single improvement — see where to place your WiFi router.
  2. Check whether it’s the walls or the floor slab. Concrete and reinforced concrete attenuate signal unusually strongly — more in WiFi through concrete.
  3. Consider an extra Mesh point placed exactly where the problem is — not guessed, but checked against the connection to the router. More in where to place a mesh router.
  4. Plan it on your floor plan instead of moving hardware around by trial and error.

FAQ

Does a WiFi dead zone always mean I need a new router?

Rarely. It’s usually about the router’s position or obstacles (walls, floor slabs) in the signal path — a new router in the same spot may only bring a small improvement.

How do I find out exactly where the problem is?

Measure the signal strength in each room separately, rather than judging it by how long pages take to load. We cover this in how to check WiFi coverage at home.

How many dead zones is the signal to add a Mesh point?

If more than one room still has weak signal after repositioning the router, an extra Mesh point is usually cheaper and more effective than further experimenting with a single router.

Are WiFi dead zones always the home’s fault, not the internet’s?

In most cases, yes — the internet connection from the provider works fine, and the problem is how the WiFi signal spreads through specific rooms.

Instead of guessing, plan your WiFi on your floor plan. Perfect WiFi will show you the best spot for your router or an extra Mesh point.

Check Perfect WiFi