How to switch Wi-Fi bands on your computer: 2.4 GHz vs. 5 GHz

Have you noticed that your computer's Wi-Fi is slow, even though your router supports two bands? 2.4 GHz And 5 GHzOr, conversely, is the signal constantly dropping out, even though the speed should be high? The problem may lie in the wrong frequency range. Many users are unaware that modern devices can automatically switch between networks, but sometimes this doesn't work optimally.

In this article we will look at how to do it manually Switch Wi-Fi bands on your computer With Windows 10 or Windows 11When automatic selection fails. We'll explain in which cases it's better to use 2.4 GHz (for range and compatibility), and when - 5 GHz (for speed and reduced interference). We'll also cover the nuances of adapter drivers, hidden networks, and the specifics of different Windows versions.

If your PC can't see the 5 GHz network or, conversely, can't connect to the 2.4 GHz band, it's not always a router issue. Operating system settings or outdated network card drivers are often to blame. We'll show you how to diagnose and fix these issues without calling a technician.

Why is it important to choose the right Wi-Fi band?

Modern routers broadcast simultaneously on two frequencies: 2.4 GHz And 5 GHzEach has its own pros and cons, and understanding them will help you avoid common mistakes during setup.

• 📶 2.4 GHz — better penetration through walls, has a wider coverage area, but is susceptible to interference from other devices (microwaves, cordless phones, neighboring networks). Suitable for remote rooms or older devices.
• ⚡ 5 GHz — higher speed, less interference, but weaker signal penetration through obstacles. Ideal for streaming 4K video, online gaming, or working close to a router.

Many routers by default combine both networks under one name (SSID) and allow devices to automatically select a range. However, Windows 10/11 does not always correctly determine the optimal frequency, especially if the 5 GHz signal is weak or the adapter driver is outdated. As a result, you may be stuck on the congested 2.4 GHz band, even though there's a free 5 GHz band nearby.

Another trap: some laptops (especially budget models) Lenovo, HP or Acer (Mobile phones manufactured between 2018 and 2020) physically don't support 5 GHz due to their cheap Wi-Fi adapters. You can check this in the device manager or on the manufacturer's website.

How do I find out what band my computer is currently connected to?

Before switching, check your current connection. This will help you determine if any changes are needed.

1. Click Win + X and select device Manager.
2. Expand the tab Network adapters, find your Wi-Fi module (for example, Intel Wi-Fi 6 or Qualcomm Atheros).
3. Right click on it → Properties → tab Additionally.
4. Look for the parameter Wireless Mode, Preferred Band or 802.11n/ac. The current mode can be specified here (for example, 802.11b/g - this is 2.4 GHz, and 802.11a/n/ac/ax — 5 GHz).

An alternative method is via the command line:

netsh wlan show interfaces

Find the line in the output Radio type (Radio Type). If it is indicated there 802.11n or 802.11ac, most likely you are on 5 GHz. If 802.11b/g — at 2.4 GHz.

Method 1: Switching via Windows settings (if the networks are separate)

The simplest case is when the router broadcasts two separate networks with different names (for example, MyWiFi_2.4 And MyWiFi_5). Then it is enough:

1. Click on the Wi-Fi icon in the tray (bottom right).
2. In the list of available networks, select the one that contains 5G, 5GHz or just a middle name.
3. Enter the password (if required) and connect.

If there are no such networks, then the router is using Smart Connect (combined name for both ranges). In this case, you'll have to configure it manually.

If you want Force Windows to use 5 GHz, even when the signal is weak, do the following:

1. Open Settings → Network and Internet → Wi-Fi.
2. Click Managing known networks.
3. Select your network → Properties.
4. In the section Network parameters check the box Connect automatically and uncheck Connect even if the network does not broadcast its name (SSID).
5. Save and reconnect.

Make sure your router supports 5GHz|Check that your PC adapter is compatible with 5GHz|Remember your Wi-Fi password|Disable your VPN (it may interfere with diagnostics)-->

Method 2: Force range selection via the adapter driver

If your router uses the same name for both bands, and Windows stubbornly clings to 2.4 GHz, you'll have to configure the adapter manually. To do this:

1. Open device Manager (Win + X → Device Manager).
2. Expand Network adapters, find your Wi-Fi module (for example, Realtek 8821CE or Intel AX200).
3. Right click → Properties → tab Additionally.
4. Look for parameters like:
   • Preferred Band (select 5 GHz only or 2.4 GHz only)
   • Wireless Mode (install 802.11a for 5 GHz or 802.11b/g for 2.4 GHz)
   • Roaming Aggressiveness (put Lowest, to reduce automatic switching)

Important: Not all adapters support manual switching. If there is no mention of it in the list of options Band or Wireless Mode, update the driver (more on this below).

Method 3: Update drivers for proper 5 GHz operation

A common cause of 5 GHz issues is outdated or faulty drivers. This is especially true for laptops with adapters. Realtek or Mediatek, where manufacturers sometimes cut corners on supporting new standards.

How to update the driver correctly:

1. Find out the adapter model in Device Manager (chapter Network adapters).
2. Download the driver from the official website:
   • For Intel: intel.ru (Wireless Networks section)
   • For Realtek: look on the laptop manufacturer's website (for example, ASUS, Lenovo)
   • For Qualcomm/Atheros: qualcomm.com

If after the update new parameters appeared in the adapter settings (for example, VHT or HE for Wi-Fi 6) - the driver is installed correctly.

⚠️ Attention: Do not use drivers from third-party sites (like DriverPack). They often contain cut-down or modified versions that can block 5 GHz.

What to do if your computer can't see the 5 GHz network

If there are no 5 GHz options in the list of available networks, the reasons may be as follows:

• 🔌 Hardware incompatibility: the adapter does not physically support 5 GHz (relevant for older or budget models).
• 🔄 Router settings: 5 GHz is disabled in the router's web interface or is operating in the mode 802.11a, which not all devices support.
• 🛠️ Driver issues: The adapter is capable of 5 GHz, but the driver does not implement it.
• 📡 Regional restrictions: Some countries (such as Japan) use non-standard 5GHz channels that may not be recognized.

For diagnostics:

1. Check if another device (smartphone, tablet) can see the 5 GHz signal. If so, the problem is with the PC.
2. Go to your router settings (usually at 192.168.0.1 or 192.168.1.1) and make sure 5GHz is enabled.
3. IN Device Manager Check if there is an exclamation mark next to the adapter (this means an error).

If the adapter does not support 5 GHz, there are two outputs:

• Buy an external USB adapter (for example, TP-Link Archer T3U or ASUS USB-AC56).
• Use 2.4 GHz by optimizing the channel in the router settings (select the least loaded one manually).

⚠️ Attention: On some laptops (eg. Dell Latitude or HP EliteBook) 5 GHz can be disabled in the BIOS. Go to the BIOS settings (button F2 or Del when loading) and check the parameters Wireless or WLAN.

Additional settings for stable operation

Even after switching to the correct band, the connection may be unstable. Here are some tips for optimization:

• 🔄 Disable automatic switching in the adapter driver (parameter Roaming Aggressiveness → Lowest).
• 📶 Select a fixed channel in the router settings (for example, 36, 40, 44 or 48 for 5 GHz), instead AutoThis will reduce delays when reconnecting.
• 🔒 Turn off power saving for Wi-Fi adapter:
  1. Open device Manager → adapter properties → tab Power management.
  2. Uncheck the box Allow the computer to turn off this device to save power.

If you use Wi-Fi 6 (802.11ax), make sure that the mode is enabled in the router settings AX or Wi-Fi 6 Mode. Some devices (especially on Intel AX200/AX201) also require activation WPA3 for maximum speed.

FAQ: Frequently Asked Questions about Switching Wi-Fi Bands

netsh wlan show interfaces