How to change the frequency of a Rostelecom Wi-Fi router from 5 GHz to 2.4 GHz: detailed instructions with pictures

You are using a router from Rostelecom, but encountered a problem: some devices do not see the network at the frequency 5 GHz, while others are working erratically? Or perhaps you need to connect a smart home or older equipment that only supports 2.4 GHzSwitching Wi-Fi frequencies is a common task, but not always obvious, especially if the router interface is different from the standard one.

In this article we will look at all methods of changing frequency on equipment Rostelecom: via the web interface, mobile app, and personal account. You'll learn how to check your current settings and why. 2.4 GHz may not be displayed in the list of networks, and what to do if the internet connection is lost after the changes. And also— Unique features for popular router models (Sagemcom, Sercomm, Huawei) that Rostelecom provides to subscribers.

If you've never accessed your router settings before, don't worry: we'll provide step-by-step instructions with images and explanations of each setting. And for experienced users, we'll provide quick commands and tips for optimizing your network after switching.

Why change Wi-Fi frequency from 5 GHz to 2.4 GHz?

At first glance, 5 GHz seems preferable: higher speed, less interference from neighboring networks. But in practice 2.4 GHz has its advantages, especially at home:

• 📱 Compatibility with older devices: many smartphones (especially budget models before 2018), tablets, smart TVs Samsung or LG 2015–2017, as well as smart home equipment (lamps Xiaomi Yeelight, sockets TP-Link Tapo) work only at 2.4 GHz.
• 🏠 Best coverage in large spaces: The 2.4 GHz signal penetrates walls and ceilings more effectively than 5 GHz. If your router is in one room and your device is in another, the 2.4 GHz network will be more stable.
• 🔄 Fewer roaming problems: If you have a mesh system or multiple access points, the transition between them on 2.4 GHz is smoother.
• 💰 Battery saving: Connecting to 5 GHz drains the battery of mobile devices faster due to the more intensive work of the Wi-Fi module.

However, 2.4 GHz There are also some downsides: below is the maximum speed (up to 300–450 Mbps versus 866–1733 Mbps at 5 GHz) and more interference from nearby networks, microwaves, or Bluetooth devices. If your equipment supports both bands, it's best to use both at the same time (if the router is dual-band) and connect devices to the required frequency manually.

Did you know that some router models Rostelecom By default, the 2.4 GHz band is turned off if no devices are connected. This is done to save power, but it can be confusing.

How to find the current Wi-Fi frequency on a Rostelecom router

Before changing the settings, check which frequency is currently active. This can be done in three ways:

1. Via the network name (SSID)

Many routers Rostelecom by default, two separate networks are created: one with the suffix _5G or -5GHz (For example, RTK-WiFi_5G), the other one is without a suffix (this is 2.4 GHz). If you only see one network, it means the second range is disabled or combined into one name (function Smart Connect).

2. In the device settings

• 📱 Android: go to Settings → Wi-Fi, tap on your network → look at the line Frequency or Speed (if specified 802.11ac or 5 GHz - this is 5 GHz; 802.11n or 2.4 GHz — respectively 2.4 GHz).
• 🍎 iPhone/iPad: install the application WiFi Analyzer or NetSpot - they will show the frequency of the connected network.
• 💻 Windows: open Control Panel → Network and Internet → Network and Sharing Center, click on your network → Intelligence → line Speed (For example, 72 Mbps - this is 2.4 GHz, 433 Mbps — 5 GHz).

3. Via the router's web interface

Go to the router control panel (read how to do this in the next section) and check the section Wi-Fi or Wireless networkThere should be separate tabs for 2.4 GHz and 5 GHz with status indication (Enabled/Disabled).

Step-by-step instructions: how to change the frequency from 5 GHz to 2.4 GHz

Now let's move on to the main thing. Attention: router interface Rostelecom This may vary depending on the model and firmware version. We'll look at the general method, and then at the nuances for popular devices (Sagemcom F@st 5364, Sercomm RV6699, Huawei HG8347R5).

Step 1: Connect to your router

• 🔌 Connect your computer or laptop to the router via cable (recommended) or via Wi-Fi.
• 🌐 Open any browser (Chrome, Edge, Firefox) and enter one of the IP addresses in the address bar:

  192.168.1.1
  192.168.0.1
  192.168.100.1

  If none of them work, check the IP on the router sticker or in the instructions.

Step 2: Log in to your control panel

Enter your login and password (usually by default admin/admin or user/user). If you changed them, use your data. On some routers Rostelecom The login and password are indicated on the sticker on the back.

Step 3: Find the Wi-Fi settings section

Depending on the router model, the path may differ:

• 📡 Settings → Wireless network (Wi-Fi)
• 📡 Network → WLAN
• 📡 Home Network → Wi-Fi

Step 4: Disable 5GHz and enable 2.4GHz

There are two possible options here:

1. If the networks are separated (there are separate tabs for 2.4 GHz and 5 GHz):
   • Go to the tab 2.4 GHz.
   • Make sure the checkbox is checked Turn on wireless network (Enable Wireless) costs.
   • Come up with a network name (SSID) or leave as default.
   • Select Channel (recommended) 1, 6 or 11 - they have the least overlap with neighboring networks).
   • Install Channel width (Channel Width) on 20 MHz (for maximum compatibility).
   • In the section 5 GHz uncheck the box Turn on wireless network, if you want to disable this range completely.