Wi-Fi & routers

Wi-Fi is slow or drops in one room

This is almost always a signal strength problem caused by distance or walls between the router and that room, not a problem with your internet plan. Moving the router, adding an extender, or switching to a mesh system usually fixes it.

Difficulty
Easy
Time
15–45 minutes
DIY cost
$0–$150
Pro cost
$100–$200

Symptoms

  • Wi-Fi is fast near the router but slow or unusable in one room
  • Video calls freeze only in a specific spot
  • Signal bars drop to one or two bars in that room
  • Speed test in that room is much lower than near the router

Likely causes

  • CommonDistance and walls between router and the roomWi-Fi signal weakens with distance and loses strength passing through walls, floors, brick, and metal (like mirrors or appliances).
  • CommonRouter placed in a closet, basement, or cornerA router tucked away or low to the ground broadcasts a weaker signal to the rest of the house.
  • PossibleInterference from other electronicsMicrowaves, cordless phones, and baby monitors can interfere with the 2.4GHz Wi-Fi band.
  • PossibleToo many devices competing for the same access pointA single router can get overloaded when many devices pull bandwidth at once.
  • Less commonOutdated router hardwareOlder routers have shorter range and slower speeds than current models.

What to do

  1. Check the signal strength in the affected room on your phone or laptop's Wi-Fi settings; a very low signal confirms a coverage problem.
  2. Move the router to a central, elevated, open location if possible, away from walls and metal objects.
  3. Restart the router by unplugging it for 30 seconds; this clears temporary congestion.
  4. Switch the affected device to the 2.4GHz network if available, since it travels farther than 5GHz, though at slower speeds.
  5. If one room is consistently weak, add a Wi-Fi extender or convert to a mesh Wi-Fi system with a node near that room.
  6. Update the router's firmware from its admin app or web page, since updates sometimes improve range and stability.
  7. If the problem persists on many devices, contact your internet provider to rule out a signal issue at the source.

Tools and parts

  • Smartphone or laptop to check signal strength
Wi-Fi extender or mesh systemSearch: “whole home mesh wifi system”

When to call a pro

If coverage is still poor after trying a mesh system, a low-voltage or home networking technician can run a wired access point to the weak room for a permanent fix.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.