If you only do one thing to improve your home Wi-Fi, change where the router lives. Most people inherit their router placement from whoever installed the internet — which usually puts the router on the floor next to the modem, in a corner, behind the TV. That’s the worst possible spot.
Wi-Fi radiates roughly spherically from the antennas. Every wall, floor, appliance, and aquarium between the router and your phone attenuates the signal. The ideal placement spreads the signal through the maximum living space and keeps the highest-priority rooms within line-of-sight.
Here’s how to do it.
Five rules of thumb
1. Centralize, even if it’s annoying
The most common router spot is the corner where the cable comes in — which means up to half of the radiated signal is going into the wall behind it, into the foundation below it, or into the neighbor’s apartment.
If at all possible, run a cable from the modem to a more central point in the home and put the router there. Even moving the router 8 feet closer to the center of the house can be the difference between a covered bedroom and a dead one.
2. Elevate
A router on the floor is fighting an uphill battle. Furniture, people, and the floor itself all attenuate signal at human-and-up heights. Put the router at least 4–6 feet up — on a shelf, on top of a bookcase, mounted to a wall.
A wall-mounted router up high is, in most homes, the single-highest-impact placement choice you can make.
3. Open it up
Routers in cabinets, behind TVs, inside drawers, or sandwiched between other electronics radiate badly. Wood, glass, drywall, and plasterboard are mostly fine; metal cabinet doors, refrigerators, and large mirrors are basically Wi-Fi mirrors.
If the only spot you can centralize and elevate is on top of a TV stand, fine — but the router itself wants air around it on at least 3 sides.
4. Stand antennas vertical
External antennas on consumer routers radiate in a horizontal “donut” perpendicular to their length. A vertical antenna covers a horizontal floor; a horizontal antenna covers a vertical column. For coverage in a single-story home, stand them vertical.
For a two-story home with a router on the ground floor, the classic trick is one vertical antenna (covers the same floor) plus one tilted ~45° (helps the floor above). Some manufacturers recommend horizontal-and-vertical; in practice, the vertical-only arrangement covers the most usable area.
5. Stay away from interference
Avoid placing the router within ~3 feet of:
- Microwaves (they leak in the 2.4 GHz band when running)
- Cordless phone bases
- Baby monitors
- Bluetooth audio bases (older ones especially)
- Large fish tanks or aquariums (water absorbs Wi-Fi)
- Stacks of metal objects, even loosely (filing cabinets, tool benches, kitchen pot racks)
Surprising mistakes
A few placement mistakes that look fine but actually aren’t:
Closet or laundry-room placement. It’s tempting to hide the router in a closet, especially for aesthetic reasons. Closets typically have insulated walls (sometimes with foil-backed insulation, which is opaque to Wi-Fi) and the door creates a funneling effect that’s hard to predict.
Up against an exterior wall. An exterior wall is one of your biggest “wasted radiation” surfaces. Move the router 3 feet inward into the same room and you’ll often get measurably better coverage on the opposite side of the house.
On top of the modem. Cable and fiber modems can run hot, and heat shortens router lifespan. Co-location is also occasionally electrically noisy. Use a short ethernet patch and move the router 6+ inches away.
Stuck behind the TV. TVs themselves have metal shielding that deflects signal. The whole rear half of the house behind the TV ends up partially shadowed.
How to verify (without guessing)
Once you’ve picked a candidate spot, test it. The whole point of having a survey app is so you don’t have to argue about placement in the abstract — you can move the router to the proposed spot, plug it in, and walk the house with WiFi Buddy. The graded report tells you flatly whether the new placement is better.
We recommend doing two surveys:
- Baseline. Where is the router right now? Walk the house, note the dead zones.
- Trial placement. Move the router. Walk again. Compare the reports.
Routers are heavy and the cable-relocation can be a project, but a 20-minute experiment ahead of an afternoon of cable-stapling can save you the afternoon entirely if the new spot turns out not to help (rare, but it happens — sometimes the original spot was better than expected).
What about mesh systems?
If your home is bigger than ~1500 sq ft, you’ll probably end up with a mesh kit anyway. The same placement rules apply to each node: centralize within its area of responsibility, elevate, keep it out of cabinets. A mesh kit with the satellite buried inside a TV stand is nearly as bad as a single router in the same spot.
For the mesh-vs-extender-vs-powerline decision tree, see our other post.
