Slow wireless connection speeds or intermittent disconnects are often the result of radio channel congestion in apartment buildings. In this situation, one of the most effective solutions is to change the router's operating band. Understanding How to change the WiFi band, allows users to optimize their network themselves, avoiding costly calls to specialists.
Modern equipment most often supports two main frequency standards: 2.4 GHz and 5 GHz. Each has unique physical properties that determine the signal's range and its ability to bend around obstacles. Choosing the right frequency directly impacts the stability of video calls, online gaming, and the speed of downloading large files.
In this guide, we'll detail the technical differences between the bands, describe step-by-step the switching process in popular router interfaces, and offer diagnostic methods for choosing the optimal option for your home.
Physical differences between 2.4 GHz and 5 GHz frequencies
Range 2.4 GHz is historically the first and most widespread standard for home networks. Its main advantage is excellent penetration: the signal easily passes through walls, floors, and furniture, providing coverage over large areas. However, due to the popularity of this frequency range, the airwaves are often overloaded with signals from neighbors' routers, Bluetooth devices, microwave ovens, and baby monitors, creating high levels of interference.
In contrast, the frequency 5 GHz Offers a significantly wider range of channels and less congestion. This allows you to achieve the maximum data transfer speeds supported by your provider's plan. The downside is a shorter range and poor ability to bypass solid obstacles: a thick concrete wall can significantly weaken the signal or block it completely.
The choice between these two options isn't always straightforward and depends on the apartment's layout. In some cases, it makes sense to use both bands simultaneously, separating them with network names (SSIDs) to manually control device connections.
Preparing to change router settings
Before making any changes to the wireless network configuration, you must access the device's administrative panel. This requires a physical or wireless connection between your computer or smartphone and the router. It's important to know the address to access the settings, which is usually located on a sticker on the bottom of the device.
The standard address for most models (TP-Link, D-Link, Asus) is 192.168.0.1 or 192.168.1.1Enter this IP address into the address bar of any browser. The system will ask for your username and password. If you have never changed this information, use the factory defaults, which are most often admin for both fields.
⚠️ Note: After changing your WiFi settings (especially the network name or password), all your devices will automatically disconnect. You will need to reconnect each device using the new settings.
It is recommended to prepare a list of devices that require a stable high-speed connection in advance in order to prioritize their configuration after switching bands.
☑️ Check before setup
Instructions: How to switch the band on a router
The process for changing the frequency may differ depending on the equipment manufacturer and firmware version, but the general logic remains the same. After logging into the web interface, you need to find the section responsible for wireless settings. This is often called Wireless, WiFi or Wireless mode.
Within this section, look for the subsection Wireless Settings or Basic settingsThere will be a field that corresponds to the standard or frequency range. Older router models may have a switch. 802.11 b/g/n (for 2.4 GHz) and 802.11 ac/ax (for 5 GHz). Modern dual-band models often implement the function Smart Connect, which combines both ranges under one name.
To force a range selection, you must:
- 📡 Disable Smart Connect or Band Steering if active.
- 📡 Separate networks by giving them different names (e.g. MyWiFi_2.4 And MyWiFi_5).
- 📡 Manually select the desired standard from the drop-down list (Mode).
- 📡 Click the "Save" button or
Save, after which the router will reboot.
If your router's interface supports flexible configuration, you can leave both bands active but with different names. This gives you complete control over which network a particular device connects to.
⚠️ Note: Firmware interfaces are constantly being updated. The menu location may differ from that described above. If you cannot find the desired item, please refer to the official documentation from the manufacturer of your model.
Setting up ranges on different router models
Different manufacturers use their own network management interfaces, which can be confusing for inexperienced users. Let's look at the specifics of setting up on popular equipment.
On devices TP-Link with a green or blue interface you need to go to the menu Wireless -> Wireless SettingsHere in the paragraph Mode The standard is selected. To separate frequencies in new models with a blue interface (Tether), you should go to Basic -> Wireless and uncheck the box Smart Connect, after which separate settings for 2.4 GHz and 5 GHz will appear.
In routers Asus with the AsusWRT interface you need to go to the section Wireless networkAt the top of the screen, there are tabs for switching between 2.4 GHz and 5 GHz frequencies. By switching between them, you can independently adjust the settings for each band or disable one of them completely.
Features of Keenetic routers
In the KeeneticOS interface, band management is located in the "My Networks and WiFi" menu. There, you can flexibly configure network names for each band and enable "Guest Network" mode separately for 2.4 and 5 GHz.
Devices MikroTik require more in-depth knowledge. On the menu Wireless You need to create two separate interfaces (wlan1 and wlan2), linking each to the corresponding radio (radio1 for 2.4 GHz, radio2 for 5 GHz), if the router hardware supports two radio modules.
Range characteristics comparison table
For clarity, we provide a comparison table that will help you finally decide on the priority range for your tasks.
| Characteristic | 2.4 GHz band | 5 GHz band |
|---|---|---|
| Maximum speed | Up to 150-600 Mbps | Up to 1300 Mbps and higher |
| Range | High (up to 50-70 m) | Medium (up to 20-30 m) |
| Penetration ability | Good (through walls) | Low (walls muffle the signal) |
| Interference level | Tall (many neighbors) | Low (free channels) |
| Device compatibility | Supports all devices | Only modern gadgets |
The table shows that for older laptops and smart home devices (light bulbs, sockets) that are located far from the router, it is better suited 2.4 GHz. Ideal for modern smartphones, 4K TVs and game consoles located in direct line of sight. 5 GHz.
Troubleshooting connection and interference issues
Even after switching bands, users may still experience network instability. A common problem in the 5 GHz band is a channel that is too narrow. In the wireless network settings, find the setting Channel Width (Channel width). For 2.4 GHz, the optimal value is 20 MHzto avoid channel overlap. For 5 GHz, you can safely set 40 MHz, 80 MHz or even 160 MHz, if the equipment allows.
If the 5 GHz signal is poor in a distant room, don't rush to switch back to 2.4 GHz. Try repositioning the router, raising it higher or moving it away from metal objects and mirrors. You can also experiment with selecting a specific channel by switching from the "Channel" mode. Auto to a fixed number (for example, 36, 40, 44), which is less busy.
⚠️ Note: Some older laptop network cards or USB adapters may not detect a 5 GHz network. If your device no longer detects WiFi after switching, check the network adapter specifications—it may not physically support this standard.
To analyze the airtime load, you can use special applications on your smartphone, such as WiFi AnalyzerThey will show a channel occupancy chart and help you choose the least noisy path for your signal.
FAQ: Frequently Asked Questions
Will changing the band affect internet speed?
Changing bands alone won't increase your ISP's speed. However, switching to the less-congested 5 GHz band will allow your device to operate at the maximum speed supported by your router, eliminating losses due to interference.
Is it possible to use both ranges at the same time?
Yes, most modern routers support dual radio operation. You can configure your network to broadcast two different names (SSIDs) and manually connect devices to the desired frequency.
Why can't my phone see the 5GHz network?
Most likely, your phone's network module is outdated and only supports the 802.11 b/g/n (2.4 GHz) standard. The issue could also be with your router's regional settings: some 5 GHz channels are restricted in certain countries, and if the router is configured for a restricted channel, your device won't see it.
Do I need to change my password after switching ranges?
No, technically changing the frequency does not require changing the security password. However, if you separate networks and give them new names, you will need to re-enter the password the first time you connect to the new network.