How to find out the range of a Wi-Fi router: range and how to check it

Have you ever noticed that the Wi-Fi suddenly disappears in the far corner of your apartment or on the balcony, even though your router promises coverage of up to 100 meters? Manufacturers often indicate maximum theoretical radius In ideal conditions, but in reality, the signal encounters obstacles—from concrete walls to a working microwave. This article will help you figure out how measure accurately The range of your router, what factors reduce coverage, and what to do if the signal doesn't reach the required points.

We will look at how software methods (via mobile applications and built-in router tools), and practice tests with speed measurements at different distances. We'll examine the differences between the ranges separately. 2.4 GHz And 5 GHz — Why the first one has a longer range but is slower, while the second one is faster but has a smaller range. At the end, you'll find a checklist for self-diagnosis and answers to frequently asked questions about "dead zones" in the home.

Router specifications: where to find the stated range

The first step is to study passport details your device. Manufacturers list the range in specifications, but these figures are usually inflated. For example, on the box TP-Link Archer C6 It may be written "up to 150 meters", but this value was obtained under conditions open space without interference (in practice - no more than 30-50 meters in an apartment).

Where to look for real data:

• 📄 On the device box — usually indicate “Cover Range” or “Wireless Range”.
• 🔍 On the manufacturer's website - in the "Specifications" section (look for the parameters TX Power And Antennas).
• 📱 In the mobile app (For example, Tether for TP-Link or Mi Wi-Fi (for Xiaomi) - sometimes they show an approximate coverage area.
• 🖥️ In the router's web interface - go to Wireless → Wireless Settings (The transmit power can be displayed in dBm).

Please note transmitter power (TX Power). The higher the value (for example, 20 dBm instead of 17 dBm), the larger the potential radius. However, in the EU and Russia there are restrictions: the maximum permitted power for 2.4 GHz — 20 dBm (100 mW), for 5 GHz — to 23 dBm (200 mW).

⚠️ Note: Some routers (eg. ASUS RT-AX88U) allow you to manually increase the transmit power via firmware, but this may violate local regulations and cause interference to neighbors. Check the laws in your country before changing settings.

Factors Affecting the Actual Range of Wi-Fi

Even the most powerful router doesn't guarantee a stable signal at maximum range. Range is affected by environment, building design, and network settings. Here are the key factors:

Critical information: If your router supports MU-MIMO (For example, Netgear Nighthawk RAX50), it can simultaneously serve multiple devices without losing range. However, this technology is only effective within the range 5 GHz and requires compatible clients (smartphones not older than 2018).

Another hidden factor is router firmwareOutdated software versions may limit transmission power. For example, in Keenetic after upgrading to NDMS 3.7 an option appeared High Power Mode, increasing the radius by 15–20%.

Practical Methods for Measuring Wi-Fi Range

Theoretical data is good, but how do you know? real radius in your specific circumstances? Here are three reliable methods:

1. Measuring signal level (dBm) using applications

The signal level is measured in dBm (decibel-milliwatt). The closer the value is to 0, the stronger the signal. Optimal values:

• 🟢 From -30 to -50 dBm - excellent signal, maximum speed.
• 🟡 From -50 to -67 dBm — acceptable for watching videos.
• 🔴 From -67 to -80 dBm - weak signal, possible interruptions.
• ⚫ Below -80 dBm — the connection is unstable or absent.

Applications for measurement:

• 📱 Wi-Fi Analyzer (Android) - shows signal level and channel load.
• 🍎 AirPort Utility (iOS) is a built-in tool for Apple devices.
• 🖥️ NetSpot (Windows/macOS) — creates a heat map of the signal.
• 🌐 Speedtest by Ookla — measures speed at different distances.

Go to the farthest point from the router|Run Wi-Fi Analyzer|Record the dBm value|Repeat at 3-4 points|Compare with optimal values-->

2. Speed ​​test at different distances

Internet speed directly depends on signal strength. Take measurements using Speedtest or Fast.com:

1. Connect to the router next to it (1-2 meters) and record the speed.
2. Move away 5-10 meters and repeat the test.
3. Continue moving away until the speed drops below 10% of the original.

The boundary where the speed drops to 1–5 Mbps, and there is real radius your network for stable operation.

3. Building a heat map (for advanced users)

Programs like NetSpot or Ekahau Heatmapper allow you to create visual coverage mapTo do this:

1. Upload a floor plan (or draw a diagram).
2. Walk through all the rooms with your laptop, recording the signal level.
3. The program will automatically create a map with areas of poor coverage.

This is the most accurate method, but it takes time. Suitable for offices or large homes.

The Difference Between 2.4 GHz and 5 GHz: Which Band Has the Longest Range?

The two main Wi-Fi bands are: 2.4 GHz And 5 GHz — differ greatly in their range. Here are the key differences:

Conclusion: If you need maximum radius (for example, for a summer house or a large house), choose 2.4 GHzIf the priority is - speed within a short distance (studio apartment), give preference 5 GHz.

Modern routers (for example, TP-Link Archer AX6000) support simultaneous operation in both rangesIn this case, devices automatically connect to the optimal network. However, some cheaper models (for example, Tenda AC5) can "stick" to 2.4 GHz even with a weak signal, resulting in low speed.

How to force a device to switch to 5GHz?

In the router settings (Wireless → Separate Bands) Disable SSID aggregation for 2.4 and 5 GHz. Create two separate networks (e.g. MyWiFi_2G And MyWiFi_5G) and connect devices manually.

How to Increase Wi-Fi Range: 7 Effective Methods

If tests show that the signal does not reach the required points, try these methods (from simple to complex):

1. Optimize your router's location

   Place it in the center of the apartment, 1–1.5 meters above the floor. Avoid closed cabinets and corners. For example, if the router is located in the hallway, the signal in the back room will be 30–40% weaker.

2. Change Wi-Fi channel

   In the range 2.4 GHz use channels 1, 6 or 11 - they do not intersect. 5 GHz choose channels with minimal load (check in Wi-Fi Analyzer).

3. Update your router firmware

   Manufacturers regularly optimize signal transmission algorithms. For example, in Keenetic after upgrading to NDMS 3.8 an option appeared Beamforming, which focuses the signal on connected devices, increasing the radius by 10-15%.

4. Use a repeater or mesh system

   If the router can't handle the entire area, add repeater (For example, TP-Link RE605X) or go to Mesh system (For example, ASUS ZenWiFi AX). Mesh automatically switches devices between nodes, ensuring smooth coverage.

5. Replace the antennas with stronger ones

   For routers with removable antennas (for example, ASUS RT-AC68U) You can buy antennas with amplification 5–9 dBiThis will increase the radius by 20-30%, but may narrow the coverage width (the signal will become more directional).

6. Adjust the transmit power (TX Power)

   In some routers (for example, MikroTik) you can manually increase the power up to 30 dBm (1 W). However, this may overheat the device and create interference for neighbors. The optimal value is 20–23 dBm.

7. Upgrade to Wi-Fi 6 (802.11ax)

   Standard Wi-Fi 6 (routers TP-Link Archer AX50, ASUS RT-AX86U) works better in interference conditions and supports OFDMA, which improves coverage in apartment buildings.

⚠️ Please note: Signal boosters (repeaters) reduce speed by 30-50% due to double data retransmission. If you need maximum performance, consider wired connection second router via Ethernet or Powerline adapters.

Common Mistakes When Measuring Wi-Fi Range

Many users make mistakes that distort test results. Here's what you can't do it:

• 📵 Ignore interference — if the test is carried out in the evening, when all the neighbors are at home, the signal will be weaker than in the morning.
• 📱 Use one device - old smartphone (iPhone 6) will show worse results than the new one (Samsung Galaxy S23).
• 🔋 Test on low battery — some devices automatically reduce the power of the Wi-Fi adapter when the battery level drops below 20%.
• 🌡️ Don't take temperature into account — in hot weather (>30°C) the electronics may throttle, which reduces the radius.
• 🔄 Do not reboot the router before testing. - Long-term operation without rebooting may lead to signal freezing.

Another common mistake is test speed, not signalSpeed ​​depends not only on the radius but also on the channel load, your provider's plan, and the server you're connecting to. For example, if your plan is 100 Mbps, even with a perfect signal, your speed won't exceed that.

The correct order of actions is:

1. Measure signal level (dBm).
2. Check it out connection stability (are there any breaks).
3. Only then test speed.

Comparison of Routers by Range: Top 5 Models of 2026

If your current router isn't providing coverage, it might be time to upgrade. We've analyzed models with maximum radius in real conditions (apartment 100 m², 2-3 concrete walls):

Please note: radius in the table indicated for real conditions (obstacle course apartment), not laboratory tests. If you need coverage for a home >150 m², consider Mesh systems (For example, ASUS ZenWiFi ET8 or TP-Link Deco X90).

⚠️ Note: Cheap routers (price < 3000 ₽) often have weak antennas and limited transmission power. Their range rarely exceeds 15-20 meters in urban areas.

FAQ: Frequently asked questions about Wi-Fi range

Is it possible to increase the Wi-Fi range without buying a new router?

Yes, try:

• Move the router to the center of the apartment.
• Change the channel to a less busy one.
• Update firmware.
• Add a repeater (but the speed will drop).

If all else fails, consider purchasing an external antenna (compatible with your model).

Why is the signal weaker on the balcony than in the room?

Glass and metal balcony frames weaken the signal by 20–40%. If the balcony is glazed, try:

• Point the router antenna towards the balcony.
• Use 2.4 GHz instead of 5 GHz.
• Set up an outdoor access point (eg. TP-Link EAP225-Outdoor).

Which router is best for a private house (2 floors, 150 m²)?

Optimal options:

• Mesh system (For example, TP-Link Deco X60) - automatically switches between nodes.
• Router with external antennas (For example, ASUS RT-AX86U) + repeater on the second floor.
• Wired network - Run a cable from the router to the second floor and connect the second router in the mode AP.

Avoid cheap repeaters - they often create additional interference.

Does weather affect Wi-Fi range?

Indoors, the weather has no noticeable effect. However, when outdoor installation (For example, an outdoor access point) Rain or snow can weaken the signal by 5-10%. Also, in extreme heat (>35°C), the electronics can overheat, resulting in a decrease in transmission power.

Is it possible to use two routers to increase coverage?

Yes, that's what it's called bridge mode (WDS) or AP (Access Point)Connection methods:

• By cable — the most stable option (speed is not lost).
• Via Wi-Fi (WDS) — easier to set up, but the speed drops by 30–50%.
• Via Powerline — adapters transmit signals via electrical wiring (speed ~200–500 Mbit/s).

The setting depends on the model. For example, for TP-Link you need to go to Wireless → WDS and specify the MAC address of the main router.