The problem of "dead zones," where internet connection is barely available or disappears completely, is familiar to anyone who has encountered home Wi-Fi. Users often blame the provider or rush to buy a new, more expensive one. router, without even realizing that the root of the problem lies in the simple geometry of the apartment. The right location for installing a router is the foundation of a stable network, and its choice is more important than the number of antennas on the device.
The physics of radio waves dictates its own strict rules: the signal propagates from antennas in all directions, but walls, mirrors, household appliances, and even aquariums can become an insurmountable barrier. If you install equipment in the far corner of a hallway or hide it in a closet niche, you'll be cutting internet speeds in all the other rooms. In this article, we'll discuss where exactly You need to install a router so that the coverage is uniform and the ping is low.
Principles of radio wave propagation indoors
Before searching for a location, it's important to understand how 2.4 GHz and 5 GHz radio waves behave. The signal propagates from the antennas perpendicular to their axis, forming a kind of "donut" or torus. If the antennas on the router point straight up, the best reception area will be horizontal, covering the area around the device. Vertically upward and downward, the signal will be significantly weaker.
Walls are the main enemies of a wireless signal. Concrete partitions with reinforcement, brickwork, and especially load-bearing walls can absorb up to 90% of the transmitted power. Drywall and wood transmit waves much better, but they still contribute to the signal's degradation. Signal attenuation It happens nonlinearly: the thicker and denser the barrier, the smaller the network's range behind it.
Another important factor is reflection. Metal surfaces, large mirrored cabinets, and even foil-backed suspended ceilings can create echo signals. These reflected waves interfere with the main data stream, causing packet desynchronization and, consequently, a drop in speed. room geometry and the arrangement of furniture play no less a role than the technical characteristics of the router itself.
Why is 5 GHz worse at passing through walls?
The 5 GHz band offers higher speeds but has a shorter wavelength. Shorter wavelengths are less able to bypass obstacles and attenuate more quickly in dense materials than the longer wavelengths of the 2.4 GHz band.
Ideal placement point in the apartment
The most logical and effective location for a router is the geometric center of your living space. If you imagine the apartment layout as a diagram, the router should be located at the intersection of the diagonals. This placement allows the signal to spread evenly in all directions, minimizing the number of walls it must traverse to reach the client device.
In typical apartments, the ISP entry point (where the cable enters the house) is often located in the hallway or near the front door. This is a worst-case scenario, as the signal immediately travels to the entryway or neighbors, and reaches distant rooms only weakly. In such cases, it is recommended extend the cable provider or run a new Ethernet cable from the electrical panel to the center of the apartment to install the router there.
Installation height is also important. The optimal height is 1.5–2 meters from the floor. At this height, the signal is less shielded by furniture (sofas, tables) and spreads better horizontally. Placing the router on the floor is strongly discouraged: it contains the highest concentration of obstacles, and dust and pet hair can quickly clog the device's ventilation holes.
Places strictly prohibited for routers
There are a number of places where placing active network equipment is simply dangerous or extremely ineffective. First and foremost, these are confined spaces. Installing a router inside a closed cabinet, alcove, or behind thick curtains creates a thermos effect. The device overheats, and its processor begins to throttle, leading to connection drops and reduced speeds.
⚠️ Caution: Never place the router near a microwave oven or gas stove. Microwaves emit powerful electromagnetic waves at a frequency of 2.4 GHz, which completely jam the Wi-Fi signal while the microwave is in operation.
Metal structures are also prohibited. Don't place the router on a metal shelf, behind a TV (especially if it has a metal panel on the back), or near large mirrored surfaces. Metal shields the signal, creating a "dead zone" behind the device, and a mirror acts as a reflector, which can direct the signal in the wrong direction or create interference.
Humidity is another enemy of electronics. Placing it in a bathroom, a kitchen near a sink, or an unheated hallway with fluctuating temperatures will lead to condensation inside the case. This causes corrosion of the contacts and short circuits. Even if the router appears sealed, temperature fluctuations will destroy it from the inside faster than you'll notice.
The influence of household appliances and wall materials
Household appliances create background noise that interferes with the stability of a wireless network. Besides microwaves, serious sources of interference include wireless baby monitors, Bluetooth devices (speakers, headphones), old cordless phones, and even some types of LED lighting with cheap drivers.
Wall materials are divided into three categories according to their signal transmittance:
- 🟢 Transparent: Drywall, wood, plastic, glass (regular). The signal passes virtually without loss.
- 🟡 Absorbing: Brick, concrete, water (aquariums, pipes), people (crowds of people also dampen the signal). The signal weakens, but gets through.
- 🔴 Reflective/Blocking: Metal, mirrors, reinforced concrete, and foil-clad insulation all reflect or block the signal.
Aquariums deserve special attention. Water is an excellent absorber of radio waves. If you have a large aquarium between your router and your laptop, it's like building a wall. Heating and water pipes act similarly, especially if they're bundled inside a wall or duct.
Antenna orientation: vertical or horizontal?
Many users mistakenly believe that pointing all of their router's antennas in one direction will result in a stronger signal. In fact, the antenna's radiation pattern is shaped like a torus (a doughnut). If the antenna is vertical, the doughnut lies horizontally, providing coverage across the entire floor. If the antenna is horizontal, the doughnut will lie vertically, and the signal will travel up and down, but not sideways.
For an apartment building, where all devices (smartphones, laptops) are usually located at the same level as the router, all antennas must be pointed strictly vertically upwardsThis will ensure maximum horizontal coverage. Horizontal antenna orientation only makes sense in rare cases, such as if the router is on the floor and the signal needs to be distributed to an upper floor, or if the client device has a horizontally oriented antenna.
If your router has two or more antennas, avoid fanning them out. A parallel, vertical arrangement will create a more predictable and wider coverage area. Experimenting with antenna angles can create narrow, high-power beams, but will leave large areas with poor reception.
| Antenna placement | Coating form | Recommended use |
|---|---|---|
| Everything is vertical | Wide horizontal | One-story apartments, offices |
| Everything is horizontal | Vertical (up/down) | Multi-level cottages (rare) |
| Fan-shaped | Uneven, with dips | Not recommended |
Accommodation plans for different types of housing
In a one-room apartment or studio apartment, this usually doesn't pose a problem. A router placed in the center of the only room or in the hallway down the middle of the apartment will easily cover the entire area with signal. The key is to avoid hiding it behind a sofa or TV stand.
In two- and three-room apartments, the situation is more complex. If the rooms are arranged in a linear pattern (as in Khrushchev-era or Brezhnev-era apartments), it's best to install the router in a central room or in the hallway, opposite the door to the central room. Doors between rooms should be open or have ventilation gaps to allow the signal to circulate.
⚠️ Note: In modern new buildings with monolithic concrete walls, a single router may not be able to cover the entire area. In such cases, do not attempt to increase the transmitter power beyond the recommended limit, as this will create interference. It's best to consider a mesh system or a repeater.
For two-story houses or cottages, the ideal location is a stairwell or the center of the first floor. The signal penetrates less well through floors (concrete slabs with reinforcement) than through walls. Therefore, placing a router in a corner of the first floor, hoping it will penetrate two floors to the bedroom on the second floor, is useless. In these cases, installing an additional access point on the second floor is often necessary.
☑️ Checking the installation location
What to do if you can't move the router?
It often happens that the provider's cable is located in an inconvenient place, and running a new cable across the entire apartment is not possible or desirable. In this case, you shouldn't put up with poor internet. There are several technical solutions for expanding coverage without relocating the main node.
The first option is to use technology PowerlineThese are adapters that transmit an internet signal through your home's regular electrical wiring. You plug one adapter into a socket near your router and connect them with a cable, and the second adapter into a socket in a distant room, where it will create a new Wi-Fi access point or provide internet via a cable.
The second option is to install a repeater or create a mesh system. A repeater receives the signal from the main router and transmits it further. It should be installed in an area where the signal from the main router is still strong but is starting to weaken (approximately halfway to the "dead zone"). Mesh systems are smarter, creating a single, seamless network with a single name, automatically switching devices between nodes.
Is it possible to mount the router on the wall?
Yes, you can. Most routers have special slots on the back panel for mounting with screws. This is even better than placing it on a shelf, as it improves ventilation and frees up space. Just make sure the wall isn't metal and doesn't block the signal in the desired direction.
Does the color of the router case affect the signal?
No, the color of the plastic (black, white, silver) does not affect radio wave propagation. However, black routers exposed to direct sunlight may become hotter, which may indirectly affect the stability of the electronics.
Do I need to remove the antennas if I'm not using them?
No, antennas are always needed, even if you're connected via cable. The Wi-Fi module is always on, providing connectivity for smartphones, smart home systems, and guest access. Without antennas, the signal will be extremely weak, and the router itself may overheat due to reflected power inside the casing.
Is it true that you need to turn off your router at night?
Modern routers are designed to operate 24/7. Constantly turning them on and off can even shorten the lifespan of components due to thermal expansion. However, periodic reboots (once a week) are useful for clearing memory and fixing errors.