How to eliminate Wi-Fi dead zones
A dead zone means the signal cannot reach that room from where it is being broadcast. Adding an access point on that side of the house — fed by cable — removes it. Extenders usually move the dead zone rather than close it.
Likely causes
One signal source, several zones
Detached wings, finished basements, upstairs bedrooms over a garage and rooms behind a masonry chimney are all common dead zones for a single central router.
Construction between you and the signal
Plaster with wire lath, brick, tile and radiant barrier sheathing block Wi-Fi far better than drywall does.
Equipment in the wrong place
Routers in media cabinets, utility closets and garages spend most of their coverage on the walls beside them.
Your options
An access point in the zone
One ceiling-mounted access point in the affected area, on its own cable, is the durable fix.
Wired backhaul for anything you add
If a second unit has to talk to the first over the air, it inherits the weak link. Cable removes it.
Mesh only where cable is impossible
In a rental or a slab home with no pathway, a mesh node placed halfway — not in the dead zone — is the compromise.
From the field
Dead zones almost always sit at a predictable distance from the router with something dense in between. A coverage walk finds them in ten minutes and tells you exactly where one access point should go.
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Frequently asked questions
- Will a Wi-Fi extender fix a dead zone?
- Sometimes partially. It has to sit where the signal is still good, which is often not where you need coverage.
- Can one access point cover an upstairs?
- In most homes yes, if it is centrally placed on that floor and fed by cable.
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