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[ REPAIR GUIDE ] WI-FI AND INTERNET

How to fix a weak Wi-Fi signal

UPDATED NOVEMBER 20263 MIN READ8 FIXES

QUICK FIX

Move the router to a central, open, raised spot away from walls, cabinets and appliances, then restart it. If some rooms are still weak, add a mesh Wi-Fi point or extender halfway between the router and the weak area.

What it means

A weak Wi-Fi signal means your device is too far from the router or something between them is soaking up the signal. Distance, thick walls and floors, metal, water, and other wireless gadgets all weaken Wi-Fi, which shows up as low bars, slow speeds and dropouts in certain rooms.

Common causes

  • The router is in a corner, closet, cabinet or behind a TV
  • Too much distance between the router and your device
  • Thick walls, floors, brick, concrete, metal or large appliances in the way
  • Interference from microwaves, cordless phones, baby monitors or nearby networks
  • Your device is on the shorter-range 5 GHz band far from the router
  • Old router or out-of-date router firmware

How to fix it

Work down the list. Each fix is safe to try before moving on to the next.

FIX 01Test close to the router firstEASY

  1. Stand near the router and run a speed test on your phone or laptop.
  2. Run the same test in the room where Wi-Fi is weak.
  3. If speeds are good near the router but poor in the weak room, the problem is coverage, not your internet plan.
  4. If speeds are poor even next to the router, see the slow internet guide instead.

Why it helps: This tells you whether you need better coverage or a faster connection.

FIX 02Move the router to a better spotEASY

  1. Place the router near the middle of your home, on the floor where you use Wi-Fi most.
  2. Raise it off the floor onto a shelf or table.
  3. Take it out of closets, cabinets and entertainment units, and away from behind a TV.
  4. Keep it away from large appliances, metal objects, fish tanks and tiled bathrooms.
  5. If the router has adjustable antennas, try pointing some straight up and some sideways.

Why it helps: Wi-Fi spreads out from the router, so an open, central, raised spot reaches more of the home.

FIX 03Reduce interferenceEASY

  1. Move cordless phone bases, baby monitors and wireless speakers away from the router.
  2. Notice whether Wi-Fi drops when the microwave runs; if so, keep the router away from the kitchen.
  3. Restart the router; some routers pick a less crowded channel when they start up.
  4. If your router has a channel setting, leave it on Auto unless your router maker suggests otherwise.

Why it helps: Other devices using the same airwaves can drown out your Wi-Fi.

FIX 04Use the right Wi-Fi bandMEDIUM

  1. Check whether your router has separate 2.4 GHz and 5 GHz networks (often shown as two Wi-Fi names, one ending in 5G).
  2. Far from the router, try the 2.4 GHz network, which reaches farther and passes through walls better.
  3. Close to the router, use 5 GHz (or 6 GHz if available), which is faster but has shorter range.
  4. If the router uses one name for both bands, it chooses for you; moving closer to the router helps it pick the faster band.

Why it helps: Each band trades speed for range, so the right one depends on how far away you are.

FIX 05Update the router and your deviceMEDIUM

  1. Open the router's app or admin page and look for a firmware or software update option.
  2. Install any update and let the router restart on its own; do not unplug it during the update.
  3. Update your computer or phone: on Windows 11, Settings > Windows Update > Check for updates; on iPhone, Settings > General > Software Update; on Mac, System Settings > General > Software Update.
  4. On Android, update from Settings > System > Software updates or your phone maker's update menu.

Why it helps: Updates fix bugs and can improve how the router and device handle Wi-Fi.

FIX 06Add mesh Wi-Fi or an extenderMEDIUM

  1. For a large or multi-story home, consider a mesh Wi-Fi system, which uses several units working together under one network name.
  2. If your router supports adding mesh points, check the maker's app for compatible add-on units.
  3. Place the extra unit about halfway between the router and the weak area, where it still gets a strong signal from the router.
  4. Do not put it inside the dead spot itself; it can only pass along the signal it receives.
  5. If you can, connect the extra unit to the router with an Ethernet cable for the best speed.

Why it helps: A second access point brings the signal closer to rooms the router cannot reach.

FIX 07Use a cable for stationary devicesEASY

  1. Connect desktops, TVs and game consoles near the router with an Ethernet cable.
  2. For far-away rooms, a powerline adapter kit or existing in-wall Ethernet can carry the connection.
  3. Fewer devices on Wi-Fi also leaves more Wi-Fi capacity for phones and laptops.

Why it helps: A wired connection is not affected by walls or distance.

FIX 08Replace an old routerADVANCED

  1. Check the router's age and Wi-Fi standard in its app, admin page or manual.
  2. If it is many years old, no longer gets firmware updates, or does not support Wi-Fi 5 or newer, consider a newer router or mesh system.
  3. If your internet provider supplied it, ask whether they offer an upgraded model.
  4. Before switching, note your Wi-Fi name and password so you can reuse them on the new router.

Why it helps: Newer routers handle more devices and cover homes better than very old models.

Check it's fixed

  • Your device shows more Wi-Fi bars in the room that was weak.
  • A speed test in the weak room is much closer to the result near the router.
  • Video calls and streaming no longer stall in that area.

When to get help

If speeds are slow even with a cable plugged directly into the modem, the problem is the internet service, so contact your provider. For homes with very thick walls or several floors, a local installer can plan mesh points or wired access points.

Questions

Do Wi-Fi extenders really work?

They can, if placed where they still get a good signal from the router. Mesh systems usually give smoother coverage across larger homes.

Where is the best place to put a router?

Central, raised and in the open, away from thick walls, metal and appliances, and on the floor where you use the internet most.

Which goes farther, 2.4 GHz or 5 GHz?

2.4 GHz reaches farther and passes through walls better. 5 GHz is faster but has shorter range.

Can neighbors' Wi-Fi weaken my signal?

Many nearby networks can cause congestion, especially on 2.4 GHz. Restarting the router or using 5 GHz closer to the router can help.

Related fixes

Why is my internet so slow?Restart your modem and router, then run a speed test close to the router. If it is fast there but slow elsewhere, it is a Wi-Fi coverage proWhy does my Wi-Fi keep disconnecting?Restart your modem and router and move closer to the router to test. If only one device keeps dropping, forget and rejoin the Wi-Fi network How to access your router settingsConnect to your home network, check the label on your router for the admin address and login, type that address into your browser's addHow to reset your router (restart or factory reset)Unplug the router and the modem from power, wait about 30 seconds, plug the modem back in first and wait for its lights to settle, then plug

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