Home internet users often encounter situations where connection speeds drop for no apparent reason, and high-definition video starts to lag. In most cases, the problem lies not with the ISP, but with the incorrect wireless frequency selection on the equipment providing it. RostelecomUnderstanding how exactly a signal is transmitted allows you to significantly improve the quality of communication in an apartment or house.
Modern operator routers, such as popular models Sercomm, Eltex or ZTE, are capable of operating in two main ranges: 2.4 GHz and 5 GHz. The key point is that by default, many devices combine these frequencies under one network name (the Smart Connect function), automatically and not always correctly switching gadgets between them. This creates the illusion of stable operation, although in reality the phone may "hang" on the overloaded 2.4 GHz channel, ignoring the free 5 GHz.
We'll delve into the technical features of each band, methods for forcibly separating them, and setting priorities for your equipment. This knowledge is essential for every subscriber looking to get the most out of their tariff plan.
⚠️ Attention: The personal account interfaces and router web interfaces are updated regularly. The menu item layout may vary depending on your device model (RT-IR4581, Eltex NTP-RG-1423-GP, etc.) and firmware version.
Two Worlds of Wireless: 2.4 GHz vs. 5 GHz
To properly configure a network, it's essential to clearly understand the physical differences between the two broadcasting standards. The 2.4 GHz band is older and more common, offering better penetration through walls and ceilings. However, its capacity is extremely limited, and in an apartment building, the airwaves are literally clogged with signals from dozens of neighbors' routers, Bluetooth headsets, microwave ovens, and even baby monitors.
In contrast, the 5 GHz frequency offers significantly higher throughput and less congestion. Data transfer rates can be several times higher here, which is critical for 4K video streaming, online gaming, and video conferencing. However, this comes at a cost: the signal's range is shorter, and its ability to bypass obstacles is significantly reduced.
Here are the main differences in characteristics:
- 📡 Range: 2.4 GHz penetrates 2-3 capital walls, while 5 GHz can lose its signal behind just one concrete partition.
- 🚀 Speed: The actual speed on 5 GHz often exceeds 300-400 Mbps, while on 2.4 GHz it is rarely possible to get more than 40-60 Mbps due to noise.
- 📱 Compatibility: Older devices (10-year-old tablets, smart plugs, cheap IoT sensors) may simply not see the 5 GHz network and require the low-frequency range.
That's why the ideal scenario is to use frequencies separately: smartphones and TVs are switched to 5 GHz, while smart home and older gadgets remain on 2.4 GHz.
Determining your current connection frequency
Before making any changes to your router settings, it's worth checking the exact frequency your device is currently operating on. This can be done without logging into the admin panel, using standard operating system tools. On a Windows computer, right-click the Wi-Fi icon in the system tray or go to Settings → Network and Internet → Wi-Fi.
In the list of available networks, find your network name (SSID) and click on it, then select "Properties." In the window that opens, scroll down to the "Properties" section. There you'll see the "Frequency Range (GHz)" field. If it shows 2.4, you're on a "slow" band. If it shows 5, the connection is optimal.
For Android smartphone users, the procedure varies slightly depending on the manufacturer's operating system, but the general principle is the same. You need to go to Settings → Connections → Wi-Fi, click the gear next to your network name, or tap the network name itself. In the detailed information, look for the line "Frequency."
How to separate networks on Rostelecom routers
The most common problem users have is the inability to force the phone to connect to 5 GHz, as the router persistently offers a combined network. Function Smart Connect (or Dual Band), which is active by default on most devices RT-IR4581 And Eltex, masks two ranges under one name. To regain control, this feature must be disabled.
You can access the settings through your browser at the following address: 192.168.1.1 or 192.168.0.1The login and password for authorization are usually indicated on a sticker on the bottom of the device (often this is admin/admin or the user data from the contract). After logging into the web interface, you need to find the section responsible for the wireless network. It may be called Wi-Fi, WLAN, Wireless network or 2.4G/5G Wireless.
Next, you should perform the following steps:
- 🔌 Find the checkbox or switch with the name 2.4G/5G Integration, Smart Connect or Combine networks and take it off.
- ✏️ After disconnecting, two independent settings blocks will appear. For the 5 GHz network, set a new name (SSID) by adding "_5G" to the main name.
- 🔒 Set a strong password for each network using encryption WPA2-PSK or WPA3 for maximum protection.
After saving the settings, the router will reboot the wireless modules. Your devices will now display two separate access points in the list of available networks. Connect your high-speed devices to the "_5G" network.
☑️ Network Separation Checklist
Selecting the optimal channel and bandwidth
Simply switching to 5 GHz may not be enough if your neighbors also have powerful routers in your home. Channel width is an important parameter. For the 2.4 GHz band, the standard width is 20 MHz, Sometimes 40 MHzSetting the bandwidth to 40 MHz in an apartment building often results in a catastrophic drop in speed due to interference.
In the 5 GHz band, the situation is different. Here, the standard is the width 80 MHz, which ensures maximum speed. Some advanced Rostelecom router models allow you to set 160 MHz, but this only makes sense in a private home where there are no other radio signal sources. In dense urban areas, it's better to leave 80 MHz for stability.
Selecting a specific channel also plays a role. If the router is set to "Auto," it may select a frequency band that isn't the clearest. You can manually select channels 36, 40, 44, 48 (lower band) or 149, 153, 157, 161 (higher band), after checking their occupancy using specialized Wi-Fi analyzer apps on your smartphone.
Why isn't 5GHz always faster?
Speed depends not only on the frequency but also on the distance from the router. If you're in a distant room behind two walls, the 5 GHz signal may degrade more than the stable, albeit slow, 2.4 GHz signal. In such cases, it's better to use a mesh system or a repeater.
Comparison table of range characteristics
To systematize information, it is convenient to use a comparison table, which will help you quickly make decisions about setting up equipment in various use cases.
| Parameter | 2.4 GHz band | 5 GHz band |
|---|---|---|
| Maximum speed | Up to 150-300 Mbps (actually less) | Up to 800+ Mbps (depending on the router) |
| Penetration ability | High (goes well through walls) | Low (attenuates strongly through obstacles) |
| Airtime congestion | Very high (a lot of interference) | Low or medium |
| Ideal for | Smart home, web surfing, IoT devices | 4K video, games, video calls, torrents |
Typical problems and solutions
Even after proper setup, users may still encounter problems with their device not detecting the 5 GHz network. This is most often due to hardware limitations in the client itself. If a smartphone or laptop is more than 7-8 years old, it may not have a module supporting the standard. 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6). In this case, the device will physically be unable to connect to the high frequency.
Another issue is region. Some routers designed for certain markets may have power or available channels limitations in the 5 GHz band. If you can see the network but the connection keeps dropping, try changing the region in the router settings to "Russia" or "United States," which sometimes expands the list of available channels.
Equipment overheating is also worth mentioning. When actively operating at high frequencies and speeds, the router's processor heats up. If the device is located in a closed niche or in direct sunlight, it may throttle (reduce performance) or reboot. Ensure good ventilation to ensure stable operation.
When to think about replacing equipment
If you've configured all the settings, separated the networks, and selected free channels, but your speed remains low, the problem may be the age of your router. Older models, issued by your provider five to seven years ago, often have outdated processors that can't handle the modern speeds offered by Rostelecom (100, 200, 500 Mbps and higher).
A sign that an upgrade is needed is a router's processor load constantly reaching 100%, even with minimal user activity. In this case, neither 2.4 GHz nor 5 GHz frequencies will help—the device becomes a bottleneck. Modern Wi-Fi 6 (802.11ax) standards provide better performance under multiple connections.
Consider purchasing your own router with support for current standards if your provider's device doesn't meet your coverage and speed requirements. A custom device gives you full control over settings, which are often limited by provider firmware.
Why does my Rostelecom router automatically switch me to 2.4 GHz?
This is how the Smart Connect feature works. The router detects that your 5 GHz signal is too weak (for example, if you move to another room) and switches the device to the longer-range 2.4 GHz band to avoid losing connection completely. Disabling this feature will give you back manual control.
Does Wi-Fi frequency affect ping in games?
Yes, directly. At 5 GHz, latency (ping) is usually significantly lower and more stable, as the airwaves are cleaner and there's less chance of packet loss due to interference from neighboring routers, which is critical for online shooters and fighting games.
Is it possible to increase the range of 5GHz?
Software methods are limited. You can try increasing the transmit power (Tx Power) in your router settings, if this option is available (often hidden in the advanced WLAN settings). However, physics is physics: high-frequency signals travel less well through concrete. For extended coverage, it's better to use a mesh system.
Is it safe to change frequency settings?
Absolutely safe. You can't "burn out" the router or permanently lose internet access. In the worst case, if you configure unsupported settings, the device will reboot or reset to factory settings. All changes can be rolled back.