Modern wireless internet isn't just about having a connection; it's also about stability, speed, and the ability to penetrate walls. Many users encounter situations where their gigabit plan from their provider is compromised by the capabilities of older equipment or incorrect frequency settings. Often, the solution lies in simply switching the radio module from the congested 2.4 GHz band to the clearer 5 GHz band, or vice versa if the signal fails to reach distant rooms.
In this article we will discuss why you need to change the range at all, how to do it through the web interface of your router and what nuances should be considered when choosing a frequency for specific devices. You'll learn how to navigate wireless network settings to get the most out of your equipment.
The difference between 2.4 GHz and 5 GHz frequencies
Before delving into the settings, it is necessary to clearly understand the physical difference between the two main broadcasting standards. Range 2.4 GHz — This is an "old school" solution that offers excellent range and penetration through solid walls, but suffers from low speed and a colossal amount of interference from neighboring routers, Bluetooth devices, and microwave ovens.
In turn, 5 GHz Offers significantly higher data transfer rates and lower latency, which is critical for online gaming and 4K content. However, this comes at a cost: radio waves at this frequency are less able to bypass obstacles and fade more quickly over distance. If you're far from the access point, the signal may simply disappear.
The choice of a specific band often depends on the usage scenario. For a smart home, where dozens of sensors and light bulbs are scattered throughout the apartment, 2.4 GHz is best. For a gaming console or Smart TV, located in the same room as the router, the 5 GHz range is ideal.
⚠️ Please note: Not all devices support the 5 GHz frequency. Older smartphones, tablets, and budget IoT devices may simply not detect the network after switching the router.
Preparing to change network settings
Changing the frequency requires access to the device's administrative panel. To do this, you'll need a computer or smartphone connected to the router. It's important to understand that changing the wireless network settings may interrupt the connection, so it's most convenient to configure the settings via cable. LAN, if such an opportunity exists.
Make sure you know your gateway's IP address. This is usually the default 192.168.0.1 or 192.168.1.1, but some providers, for example, Beeline or Rostelecom, the addresses may differ. You will also need your login and password to log in, which are often located on a sticker on the bottom of the device.
Before making any changes to the radio module configuration, it is recommended to record the current settings or take a screenshot. This will allow you to quickly revert to the original configuration if connection issues arise after changing the band.
☑️ Preparing to set up your router
Login to the router's web interface
Open any browser and enter the gateway address in the address bar. After entering the correct credentials, you will be taken to the main control menu. Interfaces vary across different manufacturers, such as TP-Link, Asus, Keenetic or MikroTik, may look different, but the logic remains the same.
You need to find the section responsible for wireless settings. It is usually called Wireless, Wi-Fi, Wireless mode or WLANThis is where the key switches that control the radio signal are located.
In some modern models with technology support Dual-Band or Tri-Band, the settings can be combined into a single interface, where band switching occurs via a drop-down list or separate tabs for each frequency. Older single-band models may not have this option at all—they only operate at 2.4 GHz.
What to do if you forgot your router password?
If the default password on the sticker doesn't work, it may have been changed previously. In this case, a full factory reset will help. Find the small hole marked "Reset" on the router's case and press it with a paperclip for 10-15 seconds while the power is on. The router will reboot with the factory settings.
Setting up the 2.4 GHz band
If your goal is to improve coverage in distant rooms or connect an older device, you'll need to configure the 2.4 GHz band. In the settings menu, find the subsection corresponding to this frequency. The key parameter here is Channel Width (Channel width). For maximum compatibility and stability in noisy apartment buildings, it is better to choose a value 20 MHz.
It is also worth paying attention to the channel selection. Automatic mode (Auto) doesn't always work correctly. It's better to use a Wi-Fi analyzer (such as a smartphone app) and manually select channels 1, 6, or 11, which don't overlap. This will reduce interference.
In this section you can enable or disable standards. 802.11 b/g/nIf you have very old gadgets that only support the standard b, leave the mixed mode. If there are no such devices, the limitation is n or ax may slightly improve overall network efficiency.
| Parameter | Recommendation for 2.4 GHz | Impact on the network |
|---|---|---|
| Channel width | 20 MHz | Reduces interference, improves stability |
| Channel | 1, 6 or 11 | Avoids crossing with neighbors |
| Security mode | WPA2-PSK (AES) | Optimal protection and compatibility |
| Standard | 802.11 n/g/b | Support for old and new devices |
Setting up the 5 GHz band
Switching to 5 GHz is the best way to eliminate lag when downloading large files. In this band's settings, the channel width (Channel Width) plays a different role. Here you can safely choose 40 MHz, 80 MHz or even 160 MHz, if the router and client devices support it. A wider channel provides greater throughput.
Selecting the right region is important. Some countries have legal restrictions on the transmitting power and available channels in the 5 GHz band. Make sure the correct region is selected in your router settings (e.g., Russia or the US/Europe) to ensure the device operates at its full permitted power.
The function is worth mentioning separately. DFS (Dynamic Frequency Selection). This feature allows the router to use channels reserved for radar. Enabling DFS support allows the router to use more available frequencies, but if a radar (such as a weather radar) is detected, the network may be briefly interrupted to change channels.
⚠️ Note: Firmware interfaces are constantly being updated. The layout of menu items may differ from those described. Always consult the official documentation from the manufacturer of your router model.
Network separation and smart switching
Modern routers often have a function Smart Connect (or similar), which combines both bands into a single network with a single name. The router automatically decides which frequency to connect the device to based on signal strength and congestion. This is convenient, but not always effective: sometimes the smart algorithm stubbornly keeps a fast laptop on the slow 2.4 GHz band.
For advanced users, we recommend disabling Smart Connect and creating two separate networks. This will give you complete control. You can set your smartphone or laptop to prioritize the 5 GHz network, while allowing smart plugs to access only the 2.4 GHz band.
If you decide to keep the combined network, ensure that the passwords and encryption types for both bands are identical. Otherwise, devices may constantly reconnect or require password re-entry when switching between access points.
Solving typical problems after changing the range
After changing the band or settings, devices may no longer see the network. This is normal. On smartphones and laptops, you'll need to find the new network in the list of available networks and re-enter the password. If the device "remembers" the old settings, you may need to tap "Forget Network" in the device's Wi-Fi settings.
If your 5 GHz speed is low, check whether your router is in a closed niche or behind a metal shield. Metal and mirrors are the main enemies of high frequencies. Also, try changing the channel manually, as the automatic channel selection may have detected an occupied frequency.
In rare cases, changing the region or channel width may require a full reboot of the router. Power off the device for 10-15 seconds, then power it back on and wait for the system to fully boot up. This will clear any temporary radio module errors.
Why can't my old laptop see the 5GHz network?
Most likely, your laptop's network card doesn't physically support this band. The 802.11ac standard (Wi-Fi 5) and newer (Wi-Fi 6) always operate at 5 GHz, but older 802.11n cards may only be single-band. Check your network card's specifications or use a USB Wi-Fi adapter that supports 5 GHz.
Is it possible to increase the range on 5GHz?
Physical laws limit the range of high frequencies. The range can only be increased slightly programmatically (by increasing the transmit power, if permitted by law and the driver). For truly extended coverage, use mesh systems or configure a second router as a repeater.
Does changing bands affect mobile internet speed?
No, router settings only affect your local wireless network (Wi-Fi). Mobile internet speed (3G/4G/5G) depends on your carrier and the quality of the cell tower signal, which is unaffected by your home router.