The modern Internet requires high speed and a stable connection, but many users of equipment from the provider Rostelecom are experiencing coverage issues or slow data transfer speeds. Often, the root of the problem lies in the incorrect selection of the wireless network frequency band. Understanding how your WiFi router, is the first step to optimizing your home network.
In this article, we'll look at how to determine what frequency your device operates on and whether it's worth switching to a more modern standard. Dual-band routers can broadcast two different networks simultaneously, allowing you to choose the optimal solution for each device. The difference between them can be colossal, especially in multi-apartment buildings with a high density of neighboring networks.
Let's get into the technical details without unnecessary complexity. You don't need to be a communications engineer to set up your router For maximum performance, simply follow the step-by-step instructions and understand the basic principles of radio waves.
Key differences between the 2.4 GHz and 5 GHz bands
Before delving into equipment settings, it is necessary to clearly understand the physical difference between the two main broadcasting standards. Range 2.4 GHz is an older and more common method, providing better signal penetration through walls and ceilings. However, its bandwidth is limited, and the airwaves themselves are often overloaded with signals from microwaves, Bluetooth devices, and neighbors' routers.
In turn, the frequency 5 GHz Offers significantly higher data transfer rates and lower latency (ping). It's an ideal choice for online gaming, 4K video streaming, and video conferencing. However, this range does have a significant drawback: it has a shorter range and significantly less obstacle avoidance than its predecessor.
Choosing the right range depends on your priorities: coverage of the entire apartment or maximum speed in one room.
- 📡 2.4 GHz: Better coverage, wall penetration, but low speed and high interference.
- 🚀 5 GHz: High speed, minimal interference, but shorter range and weak penetration.
- 🔄 Dual-band routers: Support both standards simultaneously, allowing devices to choose the best option.
Modern models from Rostelecom, such as series RT-IX or Sercomm, most often support both ranges. However, by default, they may be configured differently, and the user should check the current status.
Visual identification of the range by network name
The fastest way to find out which band you're currently using is to look at the list of available WiFi networks on your smartphone or laptop. Equipment manufacturers and providers often use specific naming conventions (SSIDs) to help users visually distinguish frequencies.
Typically, a network operating at 5 GHz has the following notice:_5G», «_5GHz" or simply "5G" at the end of the name. For example, if your main network is called RT-WiFi, then the high-speed version can be called RT-WiFi_5GIf you only see one network name, your router may be configured to combine bands (Smart Connect) or is only broadcasting one of them.
⚠️ Note: Some providers may hide or use unique names for each access point. Don't rely solely on the network name if you need 100% certainty.
Check the list of connected devices in the app Wink or web interface. The connection type for each gadget is often indicated there. This will help you understand what frequency your TV or phone is currently using.
Checking the range via the router's web interface
The most reliable method of obtaining information is to log into the router's control panel. For equipment Rostelecom The access address most often looks like this 192.168.1.1 or 192.168.0.1Some new models use a domain name, for example, my.rt.ru.
After entering your login information (the login and password are often located on a sticker on the bottom of the device), go to the wireless network section. Look for tabs with the names Wireless, WiFi or Wireless networkThis is where the radio module settings are displayed.
Inside the menu you will see switches or separate subsections for 2.4G And 5GIf the 5 GHz section is missing or inactive, it means your router doesn't support this frequency or the feature has been disabled by your ISP. Enabling both bands will allow you to create two independent networks.
☑️ Checking WiFi settings
Pay attention to the parameter Channel Width (Channel width). For 2.4 GHz, 20 MHz is optimal to avoid interference, while for 5 GHz, you can safely use 40, 80, or even 160 MHz for maximum speed.
Using mobile apps for analysis
If you're too lazy to mess around with your browser or your router's interface is blocked by your ISP, specialized smartphone apps can come to the rescue. Programs like WiFi Analyzer, Fritz!App WLAN or built-in Android diagnostic tools allow you to see detailed connection information.
Launch the app and find your network in the list. The exact channel and frequency will be listed under Details. For example, channels 1-13 are in the 2.4 GHz band, while channels 36, 40, 44, and higher (up to 100+) are in the 5 GHz band.
This method is also useful for finding dead zones. Walk around your apartment with your phone and observe how the signal strength changes at different frequencies. You'll be surprised how much faster the 5 GHz signal drops behind thick concrete walls.
- 📱 WiFi Analyzer: Shows a graph of channel load and frequency of each network.
- 📶 Built-in analyzer: On Android, the WiFi settings often have a "Details" button or a gear icon.
- 💻 Command line: On PC you can use the command
netsh wlan show interfacesto watch the channel.
⚠️ Note: App interfaces may differ depending on the operating system version. On iOS, analysis capabilities are limited by Apple's security policies.
Comparison table of characteristics
For ease of understanding, we'll summarize the main parameters in a single table. This will help you quickly determine which range to choose for specific tasks in your network. Rostelecom.
| Parameter | 2.4 GHz band | 5 GHz band |
|---|---|---|
| Maximum speed | Up to 150-450 Mbps | Up to 1000+ Mbps |
| Penetration of walls | High | Low |
| Range | Up to 50 meters (indoors) | Up to 20-25 meters |
| Interference level | High (microwaves, Bluetooth) | Short |
| Support for older devices | Full | Only modern gadgets |
As the table shows, there's no one-size-fits-all solution. For smart home devices (light bulbs, outlets), it's best to stick with 2.4 GHz, while for gaming PCs and TVs, switch to 5 GHz.
Why don't older devices see 5 GHz?
Older network cards and WiFi modules manufactured before 2013-2014 physically lack antennas for high-frequency operation. They simply can't "see" the 5 GHz network, even if it's active.
Setting up Smart Connect and separating networks
Many modern routers Rostelecom (especially models with WiFi 6 support) have a function Smart ConnectIt combines both bands into a single network with a single name. The router automatically decides where your device connects based on signal strength and load.
While this is convenient, the algorithm doesn't always work perfectly. Sometimes, the phone "locks on" to the long-range 2.4 GHz band instead of the fast 5 GHz when near the router. In such cases, it's recommended to disable Smart Connect in the settings. Wireless Settings and give the networks different names, for example, Home_24 And Home_5G.
Network separation gives you complete control. You can manually connect your laptop to a fast network, while leaving your smart vacuum cleaner on a lower-frequency network. This eliminates confusion and ensures that speed-critical devices always use the best channel.
Please note that changing your WiFi settings will disconnect your connection. You will need to re-enter the password on all devices.
Common problems and their solutions
Users often encounter a situation where the 5 GHz band disappears or doesn't work. First, make sure your region is selected correctly in your router settings. In some countries, certain 5 GHz channels are restricted, and the router may hide them or disable the entire module.
Also, check that the channel width isn't set to "Auto." Sometimes manually setting a channel (for example, 36 or 40) can help stabilize the connection if the router is having trouble with automatic channel selection. For the 2.4 GHz band, it's best to manually select channels 1, 6, or 11.
If nothing helps, there may be a hardware or firmware issue. Update your router software through your personal account. Rostelecom or the web interface often corrects errors in the operation of radio modules.
FAQ: Frequently Asked Questions
How do I know if my phone supports 5GHz?
Check the device specifications on the manufacturer's website or in the marketplace. Look for the standard. 802.11ac (WiFi 5) or 802.11ax (WiFi 6). If only 802.11n, most likely only supports 2.4GHz, although some dual-band "n" versions also exist.
Is it possible to increase the range of 5GHz?
Physically, no; this is a limitation of radio wave propagation. However, you can try changing the channel to a lower one (36-48), which penetrates obstacles slightly better, or install a repeater (amplifier) that supports 5 GHz.
Why is the 5 GHz speed lower than stated in the tariff?
WiFi speeds are always slower than cable speeds due to protocol overhead, encryption, and distance. Furthermore, if you have a router with 100 Mbps ports, it won't deliver speeds higher than that, even over 5 GHz WiFi. You need a gigabit router.
Does the number of connected devices affect the choice of range?
Yes, the 5 GHz band is better at handling multiple simultaneous connections thanks to MU-MIMO technology. If you have more than 10 active devices at home, offloading 2.4 GHz bandwidth by switching some of them to 5 GHz will significantly improve the situation.