How to find out the Wi-Fi frequency on a laptop: 2.4 GHz or 5 GHz - 5 proven methods

Are you connected to Wi-Fi, but the speed is still slow? It might be a network frequency issue. 2.4 GHz or 5 GHzLaptops often automatically select a frequency band without revealing it to the user. Knowing the current frequency helps optimize the connection: for example, switching to a less congested channel or configuring the router for stable operation.

In this article - 5 working ways to find out the Wi-Fi frequency on a laptop running Windows 10/11, macOS or Linux, including command line methods and third-party utilitiesWe'll explore how to determine the range without additional software, what to do if your laptop doesn't support 5 GHz, and why the frequency is sometimes displayed incorrectly.

Spoiler: the fastest way is to use netsh V Windows or airport V macOS, but for beginners, the graphical interface is more convenient. And if you administer a network, analysis via Wi-Fi Analyzer.

Why is it important to know the Wi-Fi frequency on your laptop?

Network frequency directly affects connection speed and stability:

• 📶 2.4 GHz — greater coverage, but lower speed and higher interference (microwaves, Bluetooth, neighboring networks).
• ⚡ 5 GHz - higher speed and less interference, but weaker penetration through walls.

If your laptop is connected to 2.4 GHz, and the router supports 5 GHz, you lose up to 70% of potential speed. Or vice versa: if you're in another room and the laptop stubbornly clings to 5 GHz, the signal will be weak.

Knowing the frequency will also be useful if:

• 🔧 Set up guest network on a frequency-division router.
• 🎮 Optimize your connection for online gaming or 4K streaming.
• 🛠️ Diagnose connection issues (for example, your laptop doesn't see 5 GHz).

Method 1: Via Network Settings in Windows 10/11 (without programs)

The easiest method is to look at the frequency in the standard settings WindowsFits most laptops with adapters Intel, Realtek or Qualcomm Atheros.

Instructions:

1. Click Win + Ito open Settings.
2. Go to Network and Internet → Wi-Fi.
3. Click on the name of your network (under "Connected").
4. Scroll down to the Properties block - there will be a line Network frequency.

If there is no “Network frequency” item, then:

• 🔌 Your Wi-Fi adapter does not support displaying this information.
• 🔄 The laptop is connected to the network with automatic frequency selection (for example, if the router uses the same SSID name for 2.4 and 5 GHz).

Method 2: Via the command line (netsh)

Universal method for Windows, which works even if the graphical interface does not show the frequency. We use the command netsh — a built-in tool for network management.

Open Command Prompt (Win + R → enter cmd → Enter) and run:

netsh wlan show interfaces

Find the block in the results Radio Type (Radio type). Possible values:

• 802.11n or 802.11g - almost always 2.4 GHz.
• 802.11ac or 802.11ax — 5 GHz (less than 6 GHz).
• 802.11a - Always 5 GHz.

netsh wlan show networks mode=bssid

If the command didn't work, check:

• 🔌 Are you connected to Wi-Fi (not Ethernet).
• 🛠️ Is the command prompt running as administrator (sometimes required).

Method 3: Via Device Manager (checking 5 GHz support)

This method will not show the current frequency, but it will help you find out, Does your Wi-Fi adapter support 5 GHz?If not, the laptop automatically connects only to 2.4 GHz.

Instructions:

1. Click Win + X → select "Device Manager".
2. Expand the "Network adapters" branch.
3. Find the device with the words Wireless, Wi-Fi or 802.11 (For example, Intel Wi-Fi 6 AX200).
4. Right-click → Properties → Advanced tab.

Look for parameters like:

• Wireless Mode or Band - if there is 802.11a or 5 GHz, the adapter supports this range.
• Preferred Band - here you can manually set the priority of 2.4 or 5 GHz.

Find the adapter in "Network adapters"

Open "Properties" → "Advanced" tab

Check the settings for 802.11a/ac/ax or 5 GHz

If there are no such parameters, the adapter only works at 2.4 GHz-->

If there are no mentions in the list 5 GHz or 802.11ac/ax, your laptop physically cannot connect to this range. Solutions:

• 🔧 Update the adapter driver (sometimes manufacturers add support for new standards).
• 🖥️ Buy an external USB Wi-Fi adapter with 5 GHz support (for example, TP-Link Archer T4U).

Method 4: Using third-party programs (Wi-Fi Analyzer, inSSIDer)

If standard methods don't work, use specialized utilities. They will show not only the frequency, but also channel load, signal strength, and even neighboring networks.

Top 3 Wi-Fi Analysis Software:

Example of use Wi-Fi Analyzer:

1. Install the program from Microsoft Store.
2. Run → go to the "Analysis" tab.
3. Find your network in the list - in the column «Band» will be indicated 2.4 GHz or 5 GHz.

If the program shows that the laptop is connected to 2.4 GHz, and you expected 5 GHz, check:

• 📡 Router settings - 5 GHz may be disabled or hidden.
• 🔄 Network Name (SSID) - Some routers separate 2.4 and 5 GHz into different names (for example, MyWiFi_2G And MyWiFi_5G).

Method 5: On macOS (via Terminal or Wi-Fi menu)

On laptops MacBook The frequency can be found out in two ways: through the graphical interface or the command line.

Method 1: Through the Wi-Fi menu

1. Hold down the key Option (⌥) and click on the Wi-Fi icon in the menu bar.
2. Find the line in the drop-down list «Channel»:
3. Channels 1–14 - This 2.4 GHz.
4. Channels 36–165 - This 5 GHz.

Method 2: Via Terminal

Open Terminal (through Spotlight or Programs → Utilities) and run:

/System/Library/PrivateFrameworks/Apple80211.Framework/Versions/Current/Resources/airport -I

In the results, look for the line channel. For example, channel: 6 - this is 2.4 GHz, and channel: 44 — 5 GHz.

Common problems and solutions

Sometimes the frequency is displayed incorrectly or the laptop can't connect to 5 GHz. Let's look at typical cases:

Problem 1: The laptop does not see 5 GHz networks.

• 🔌 Cause: The adapter does not support 5 GHz or the driver is out of date.
• 🔧 Solution: Update driver via device Manager or the manufacturer's website (Intel, Realtek).

Problem 2: Windows shows 802.11n, but it is unclear whether it is 2.4 or 5 GHz.

• 📡 Cause: The 802.11n standard operates in both bands.
• 🔍 Solution: Use netsh wlan show networks mode=bssid (cm. Method 2).

Problem 3: The laptop automatically connects to 2.4 GHz, although 5 GHz is available.

• 🔄 Cause: The router settings contain one SSID name for both ranges, and the device selects the less stable one.
• 🛠️ Solution: Separate the networks in the router settings (for example, MyWiFi_2G And MyWiFi_5G) and connect to the desired one manually.

FAQ: Frequently asked questions about laptop Wi-Fi frequency

iwconfig

iwlist wlan0 scanning | grep Frequency