Modern wireless standards require high throughput, which the traditional 2.4 GHz band can no longer provide due to high airtime congestion. Switching to a frequency 5 GHz This significantly increases data transfer speeds and reduces interference, which is especially important for those with high-speed Rostelecom plans. However, many users encounter problems with their devices not detecting the new network or with their router not broadcasting a signal in this range by default.
In this article, we'll take a detailed look at how to activate 5 GHz mode on various models of ISP-supplied equipment. You'll learn the differences between a combined network name and separate SSIDs, and understand why your smartphone may not see a signal even if the router is broadcasting one. Correct setting will unlock the potential of your home internet.
It is worth noting right away that the setup process may differ slightly depending on the model of your device, whether it is Sagemcom, Eltex or ZTEWe'll cover the general principles of logging into the web interface and finding the necessary parameters, which apply to most operator subscriber terminals.
Benefits of moving to 5 GHz
The main advantage of the 5 GHz band is that it significantly higher speed Data transfer rates compared to 2.4 GHz. While actual speeds in the older band rarely exceed 40-50 Mbps due to channel narrowness and interference, the new standard enables gigabit speeds, which is critical for watching 4K video and online gaming.
Moreover, this band is much less crowded. In apartment buildings, dozens of neighboring routers create a "mess" of signals on the 2.4 GHz frequency, which leads to constant connection drops and speed drops. Switching to 5 GHz allows your device to work in pure ether, ensuring a stable ping and no jerks.
⚠️ Attention: The 5 GHz signal has a shorter range than 2.4 GHz and penetrates structural walls less effectively. If your router is installed in a hallway and you're in a distant room behind two doors, the signal may be weak or nonexistent.
Also worth mentioning is the technology support MIMO (Multiple Input Multiple Output), which operates more efficiently at higher frequencies. This allows for the transmission of multiple data streams simultaneously, increasing overall network throughput for all connected devices without compromising connection quality.
Checking hardware compatibility
Before accessing any settings in your account or web interface, you need to make sure your equipment physically supports dual-band operation. Not all routers supplied by Rostelecom are dual-band. Older models that only support the standard 802.11n, often limited to 2.4 GHz.
Look at the sticker on the bottom of the device. If it says Dual Band or standards are listed 802.11ac (Wi-Fi 5) and 802.11ax (Wi-Fi 6), which means the 5 GHz module is present. Support is also indicated by the presence of two antennas or speed indications like N300 + AC1200, where AC stands for high-speed range.
The second important point is client device compatibility. Even if the router broadcasts a 5 GHz network, your laptop or phone may not see it if their Wi-Fi modules don't support this standard. You can check this in Windows Device Manager or in your smartphone's specifications.
How to check for 5 GHz support in Windows
Open a command prompt and enter the command netsh wlan show drivers. Find the line "Supported radio types." If you see 802.11a, 802.11ac, or 802.11ax, your adapter supports 5 GHz.
There is a standards compliance table that will help you navigate the capabilities of your hardware:
| Wi-Fi standard | Frequency range | Max. speed (theoret.) | 5 GHz support |
|---|---|---|---|
| 802.11n (Wi-Fi 4) | 2.4 GHz / 5 GHz | up to 600 Mbps | Partially |
| 802.11ac (Wi-Fi 5) | 5 GHz | up to 6.9 Gbps | Yes |
| 802.11ax (Wi-Fi 6) | 2.4 GHz / 5 GHz | up to 9.6 Gbps | Yes |
| 802.11b/g | 2.4 GHz | up to 54 Mbps | No |
Accessing Rostelecom router settings
To manage your wireless network settings, you need to access the device's web interface. Open any browser on a computer or smartphone connected to the router and enter the IP address in the address bar. For Rostelecom equipment, this is most often 192.168.1.1 or 192.168.0.1.
The system will request authorization. The default login and password are located on the same sticker as the model information. Typically, the login is admin, and the password is admin or a unique combination of characters. If you've changed your login details before and have forgotten them, you'll need to reset your settings using the button Reset on the body.
After successfully logging in, you'll see the main status bar page. The interface may vary: Sagemcom It is often done in blue and white tones, Eltex - in a more strict style, and new models with firmware RT-Home have a modern, minimalist design. We need to find the section responsible for WLAN or Wi-Fi.
Activating the 5 GHz band in the interface
The setting is carried out in a section that may be called Network → WLAN → 5G Basic Settings or simply Wi-Fi 5 GHzIn some Rostelecom firmware versions, the settings for 2.4 and 5 GHz are located in separate tabs, while in others, they are located in the same menu with a switch.
The first thing you need to do is find the check mark Enable Wireless or Enable wireless connection Specifically for the 5G band. If it's disabled, the router won't broadcast the network, even if the other parameters are configured correctly. Once enabled, fields for setting the network name (SSID) and password will appear.
Here's the important point: many routers use the feature by default Band Steering (smart switching), when the 2.4 and 5 GHz networks have the same name. The device automatically decides which one to connect to. If you want to force switching to 5 GHz, it's best to give the network a unique name, for example, by adding the suffix "_5G."
In the basic settings section, it is also recommended to select the channel and channel width. For maximum speed, select the width 80 MHz or 160 MHz (if supported). It is better to leave the channel in the mode Autoso that the router itself selects the least loaded frequency, or manually set one of the frequencies unused by neighbors.
☑️ 5 GHz Activation Checklist
⚠️ Attention: Changing Wi-Fi settings will cause all wireless devices to lose connection. You'll need to reconnect your smartphones and laptops to the network with the new name or password.
Setting up security and operating mode
Security in the 5 GHz band is just as important as speed. In the section Security or Security Make sure the encryption mode is selected WPA2-PSK or WPA3Using outdated WEP or an open network (None) will leave your data vulnerable, even if your connection speed is high.
Operating mode (Mode) must be set to mixed or automatic mode, for example, 802.11 a/n/ac/ax mixedThis will ensure compatibility with all devices: older gadgets will connect according to the standard. n, and the new ones will work at maximum speed through ac or ax.
Don't forget to install password Wi-Fi. Even if you have a router at home, protecting yourself from random connections from your neighbors is crucial to maintaining your channel. A weak password or no password at all can lead to neighbors clogging up the airwaves with their downloads, negating the advantage of 5 GHz.
After making all the changes, be sure to click the button Save or ApplyThe router may reboot its wireless module, which will take about 10-20 seconds. During this time, the Wi-Fi indicator on the router may blink or go out.
Solving common connection problems
Users often complain that they've enabled 5 GHz, but the network doesn't appear in the list of available networks. The first reason is geolocationIn some regions, 5 GHz channels may be restricted by law, and the router simply won't activate them. Check your region settings in the web interface.
The second reason is the drivers for your computer's Wi-Fi adapter. If your laptop is more than 7-8 years old, it may not physically support this range. In this case, the only solution is to purchase an external USB Wi-Fi adapter that supports it. 5 GHz and standard AC.
The third problem is network name "sticking together." If you haven't separated the SSIDs for 2.4 and 5 GHz, the device may stubbornly lock onto the longer-range but slower 2.4 GHz band, ignoring the faster signal nearby. In this case, "forgetting" the network on the device and reconnecting when you're in close proximity to the router will help.
⚠️ Attention: Rostelecom firmware interfaces are regularly updated. Menu locations and item names may differ from those described. If you can't find the item you need, check the latest instructions for your specific model on the official support portal.
Frequently Asked Questions (FAQ)
Why can't my phone see the 5G network even though my router is dual-band?
Most likely, your smartphone has a single-band Wi-Fi module that only supports 2.4 GHz. This is typical for budget models or devices released before 2015-2016. Check your model's specifications online.
Is it possible to combine 2.4GHz and 5GHz network names into one?
Yes, this feature is called Band Steering. However, on Rostelecom routers, it sometimes doesn't work correctly, causing devices to "jump" between frequencies. For stability, it's best to set different names, for example, HomeWiFi and HomeWiFi_5G.
Does setting 5 GHz affect cable internet speed?
No, the wireless module settings do not affect the data transfer speed through the LAN ports. A wired connection will always operate at the maximum speed possible for the given port (usually 100 Mbps or 1 Gbps), regardless of the Wi-Fi settings.
What is the best channel for 5 GHz in an apartment building?
Non-overlapping channels are considered the best. There are many of them in the 5 GHz band (36, 40, 44, 48, etc.). It's best to use Wi-Fi analyzer apps on your smartphone to find a clear channel, or leave the "Auto" setting.