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Quick answer: Start free: move the router central and high, clear of metal and thick walls, and use the 2.4GHz band for far rooms. For one dead zone, add a dual-band extender halfway between router and problem area. For whole-house dead spots, replace the router with a mesh system. The gold standard for a specific far room is an Ethernet cable to a wired access point.
Step 1 – Placement, the free upgrade
WiFi radiates outward and downward reasonably well, so the router belongs central and elevated. The three placement sins that create most dead zones: hiding the router in a cabinet (metal and clutter absorb signal), parking it at one end of the home, and standing it next to the TV amplifier or microwave. Fixing placement often recovers a room or two on its own.
Our pick for this guide: TP-Link Deco XE75 Mesh WiFi 6E System
Repeaters halve your bandwidth at every hop, so for the dead zones this guide describes, a true mesh system with a dedicated backhaul band is the upgrade that actually holds speed across the house.
Step 2 – Use the bands correctly
5GHz is fast and short-legged; 2.4GHz is slower but penetrates walls much better. Name the bands separately in the router settings and connect far devices (thermostat, garage camera, bedroom TV) to 2.4GHz deliberately. WiFi 6 improved 2.4GHz meaningfully, which is one quiet reason new routers reach further.
Step 3 – One dead room: a proper extender
Buy dual-band or tri-band, skip the single-band bargain bin. Plug it in halfway between router and dead zone, where it still receives a strong signal to repeat. Setup is a WPS press or a five-minute app flow. Our tested picks are in the best WiFi range extenders guide.
Step 4 – Whole house: mesh
Mesh replaces the router with two or three nodes that share one network name and hand devices off as you move. It is the right answer for multi-floor homes, thick-walled builds and anyone tired of picking between three network names in their own kitchen. See the best mesh systems for large homes and the WiFi 7 mesh roundups.
Step 5 – The gold standard: wire the far end
If you can run one Ethernet cable (or use existing coax with MoCA adapters, or a powerline kit as plan B), a wired access point in the far room delivers full speed with zero repeating loss. It is what installers do in large homes, and our guide to running Ethernet through the house shows the least-invasive routes.
Frequently asked questions
Do WiFi extenders cut your speed in half?
Classic single-band extenders do, because they receive and retransmit on the same radio. Modern dual-band extenders with a dedicated backhaul lose far less, and a mesh system or a wired access point loses almost nothing. The cheaper the repeater, the truer the halving myth.
Where is the best place to put my router?
Central, elevated and in the open: on a shelf in the main living area beats the floor of a corner office every time. Keep it away from thick masonry walls, metal cabinets, aquariums and the microwave. Antenna orientation matters less than clearing obstacles around the unit.
Extender, mesh or access point: which should I buy?
One stubborn dead room on a budget: a dual-band extender. Whole-house coverage with roaming that just works: mesh. Best possible performance to a specific area, and you can run a cable there: a wired access point wins on every metric except convenience.
Fix placement first, it is free. Then match the tool to the problem: extender for one room, mesh for the whole house, a cable plus access point when you want it done properly.
