The problem of "dead zones," where internet coverage is poor or disappears completely, is familiar to many ISP subscribers. Users often encounter situations where the speed is maximum in one room, but the signal becomes unstable through one wall. Wi-Fi range depends not only on the transmitter power, but also on physical obstacles, interference and equipment settings.
The solution lies in a comprehensive approach: from simply relocating the router to purchasing additional equipment. In this article, we'll explore technical and software methods that allow as efficiently as possible use the capabilities of your home router RT-El410 or SercommYou'll learn how to properly configure the frequency range and why it's sometimes better to replace old equipment.
Don't rush out to the store to buy a new gadget. In 70% of cases, the situation can be remedied with proper configuration of your existing device. We'll cover both free optimization methods and hardware solutions for large apartments. Signal Boosting — the problem can be solved if you understand the principles of radio wave propagation.
Optimal placement of a router in an apartment
The physical location of the access point is a fundamental factor affecting connection quality. Many users make the mistake of hiding the router in a cabinet, behind a TV, or in a power outlet, which is absolutely unacceptable for radio waves. Metal surfaces Mirrors and glass screen the signal, creating blackout zones. The ideal location is the center of the apartment, 1.5–2 meters above the floor.
If moving the device to the center of the home is not feasible, try to place it so that there are a minimum number of walls between it and the main work areas. Load-bearing walls with reinforcement and damp rooms are particularly critical. Router antennas, if external, should be pointed vertically upward to ensure horizontal wave propagation.
⚠️ Attention: Avoid placing your router near microwave ovens, baby monitors, or high-power Bluetooth speakers. These devices create significant interference in the 2.4 GHz band, causing a significant drop in speed.
It's important to consider the wall material when planning your network. Drywall transmits signals well, while concrete and metal transmit poorly. If your router is located near the front door, half the signal will be lost to neighbors or the stairwell, which is inefficient. Position your antennas so that the primary lobe of the radiation pattern covers the living area.
Setting transmitter power and frequency ranges
Configuring your router's software allows you to significantly improve your coverage area without purchasing new hardware. Access the device's web interface, usually accessible at 192.168.1.1 or 192.168.0.1In the Wireless section, find the option Transmit Power (Transmission Power) Make sure it is set to High or 100%Sometimes after firmware updates, the settings are reset to the average values.
Modern Rostelecom routers, such as Eltex or Huawei, operate in two bands: 2.4 GHz and 5 GHz. The 2.4 GHz band has better wall penetration but is more congested with neighboring networks. The 5 GHz band offers higher speeds but is less able to penetrate obstacles. For increased range over long distances, prioritize 2.4 GHz.
Channel width also plays a role. For maximum wall penetration and range, adjust the channel settings (Channel Width) it is better to choose the value 20 MHz instead of 40 or 80 MHz. This will reduce the maximum speed but improve connection stability over distance. A narrow channel is less susceptible to interference and allows the signal to reach distant points.
How to access router settings?
Open a browser and enter the router's IP address (found on the sticker on the bottom of the device). Enter your username and password (usually admin/admin or the information on the sticker). Go to the Wireless or WLAN section to find the power settings.
Selecting a free channel and reducing interference
In apartment buildings, the airwaves are oversaturated with signals from dozens of neighboring routers. When all devices are operating on the same channel, collisions occur, and speeds drop even with a full signal. Use specialized utilities to scan the airwaves to find the least congested channel. In the 2.4 GHz band, it is recommended to use only channels 1, 6, or 11, as they do not overlap.
Find the setting in the router interface Channel and switch it from mode Auto to a specific available number. Automatic mode doesn't always work correctly and may select a congested channel when the device reboots. Regularly checking the airtime load will help maintain stable network operation.
- 📡 Wi-Fi scanners: Use apps like Wi-Fi Analyzer for Android or AirPort Utility for iOS.
- 🔧 Manual setup: Force channels 1, 6 or 11 in your router settings.
- 📉 Neighborhood Analysis: Avoid channels used by nearby routers with high signal strength.
If you live in a densely populated area, even a clear channel may not be enough due to overall noise. In this case, switching to 5 GHz may be more effective, despite the shorter range, as there are more clear channels and less interference. However, for the purpose of "increasing range," we still focus on optimizing 2.4 GHz.
Using repeaters to expand a network
If software settings and rearrangement do not help, additional equipment will come to the rescue. Repeater A repeater is a device that receives a signal from the main router and transmits it further. This is the most cost-effective way to increase coverage. The repeater plugs into an outlet approximately halfway between the router and the "dead zone."
The setup process is usually simple: plug the extender into a power outlet near your router, press the WPS button on both devices, or configure it through the web interface. After that, the extender clones your network, adding the prefix "WPS" to the name. _EXTIt's important to understand that a repeater cuts the speed by approximately 50% because it operates in half-duplex mode (receiving and transmitting alternately).
| Device type | Pros | Cons | Price |
|---|---|---|---|
| Repeater | Cheap, easy setup | Cuts speed by up to 50%, creates a separate network | Low |
| Powerline adapter | Stability, not dependent on walls | Requires high-quality wiring, expensive | Average |
| Mesh system | Unified network, roaming, high speed | High cost of the set | High |
When choosing a repeater, pay attention to its standards support. If your router supports Wi-Fi 5 (ac), the repeater must support it, otherwise it will become a bottleneck. Budget N-standard models are suitable for simple social media surfing, but for 4K streaming, a device with 5 GHz support is better.
⚠️ Attention: A repeater shouldn't be placed in a dead zone. It should be located where the signal from the main router is still strong, so it can transmit further.
Mesh systems: a modern solution for large apartments
For apartments with an area of more than 80-100 square meters or houses with thick walls, the best solution is Mesh systemsUnlike repeaters, they create a single, seamless network. As you move around your home, the device automatically switches to the nearest access point without interrupting the connection. This is especially useful for video calls and online gaming.
A mesh system consists of several modules (nodes). One is connected to the provider's cable, while the others are placed in other rooms. They communicate with each other, choosing the optimal data path. Many modern Rostelecom routers, offered under the "Gaming" or "Maximum" plans, already have built-in support for mesh technology, allowing you to purchase compatible modules.
These systems are configured via a user-friendly mobile app. You can view a network map, manage guest access, and prioritize devices. Although the kit is more expensive than a standard repeater, the ease of use and stable coverage are worth it. It's a long-term investment.
☑️ Selecting equipment for amplification
Alternative methods and antenna replacements
A lesser-known method is to replace the standard antennas with more powerful ones. If your router has detachable antennas (SMA or RP-SMA connectors), you can purchase antennas with a gain of 5 dBi or 8 dBi instead of the standard 2-3 dBi. This will physically change the radiation pattern and increase the signal strength in the horizontal plane.
Another option is to use directional antennas if you need to extend the signal to a specific room or even to neighbors (although the latter is against the rules). A directional antenna focuses the signal into a narrow beam, significantly increasing the range in one direction but depriving other areas of coverage.
It's also worth checking the cable connections. If the antenna isn't fully screwed in or the cable is pinched, signal loss can reach 30-40%. Make sure all connectors are tightly tightened. Sometimes, even simply cleaning the contacts of dust can help.
When equipment replacement is necessary
Sometimes, no amount of adjustments helps because the equipment is outdated or outdated. If your router is more than 5-7 years old, its radio module may have degraded, and Wi-Fi standards have advanced significantly. Older devices can't operate effectively in the noisy airwaves of modern apartment buildings.
Rostelecom frequently offers rental or purchase of modern models as part of its equipment replacement promotions. The new routers support the standard Wi-Fi 6 (802.11ax), which better distributes resources among multiple devices and penetrates walls more efficiently thanks to Beamforming technology.
Don't be afraid to contact your provider's technical support. A specialist can remotely check your line's signal strength, detect any errors, and check the condition of your equipment. The problem may not be with your Wi-Fi, but with the quality of the cable coming into your apartment or a congested port.
⚠️ Attention: Equipment specifications and tariff plans are subject to change. For up-to-date information on supported router models and available services, always check your subscriber account or the provider's official website.
Frequently Asked Questions (FAQ)
Is it possible to increase Wi-Fi power programmatically without voiding the warranty?
Yes, changing channel settings, channel width and operating mode in the web interface (192.168.1.1) is a standard feature and does not affect the warranty. However, flashing the firmware with modified versions of third-party software (such as OpenWrt) may void your warranty.
Why does my Rostelecom router get hot and how does it affect the signal?
Overheating causes throttling (reduced performance) of the processor and radio module. This results in a drop in Wi-Fi speed and possible connection interruptions. Ensure the device is well ventilated and do not cover it with objects.
What's better for a summer house: a repeater or a second router in access point mode?
For a summer house where coverage is important, a setup of two routers connected by cable or Wi-Fi (WDS/Access Point mode) is best. The second router will create a fully functional new network with full control, while a repeater will simply expand the existing one, at a loss of speed.
Does the number of connected devices affect the range?
Not directly on the physical radius. But with a large number of active devices (20+), the load on the router's processor increases, packet queues increase, which subjectively feels like "bad internet" even in a strong reception area.