How to determine the frequency of a Wi-Fi router in Windows: 2.4 or 5 GHz?

You've connected to your home network, but you don't know what frequency your Wi-Fi is running on. 2.4 GHz or 5 GHzThis information is critical for optimizing speed, connection stability, and even security. For example, 5 GHz provides high speed, but is weaker at passing through walls, and 2.4 GHz — longer range, but susceptible to interference from neighboring networks and microwaves.

In this article you will find 5 Proven Ways to Determine Wi-Fi Bandwidth in Windows 10 and 11 — from built-in system tools to specialized utilities. We'll figure out how to find out the frequency current connection, as well as how to check which networks around you operate on 2.4 or 5 GHz. This is useful if you're setting up a new router, diagnosing connection issues, or choosing the optimal channel for gaming/streaming.

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

Wi-Fi frequency directly affects:

• 🔹 Internet speed — 5 GHz theoretically faster (up to 1300 Mbps versus 600 Mbps for 2.4 GHz in standard 802.11ac), but the actual speed depends on the distance and obstacles.
• 🔹 Connection stability - on 2.4 GHz The signal passes through walls better, but suffers from interference (especially in apartment buildings).
• 🔹 Device compatibility - old gadgets (for example, some smart light bulbs or printers) only work on 2.4 GHz.
• 🔹 Security - networks 5 GHz are less likely to be targeted for attacks due to their lower prevalence.

If your router supports dual band (simultaneously 2.4 GHz And 5 GHz), Windows can automatically connect to a less congested frequency. But sometimes this doesn't work optimally—for example, a laptop gets stuck on a slow one. 2.4 GHz, Although 5 GHz Free. Checking the frequency will help identify and correct such problems.

Method 1: Via Windows Settings (without programs)

The easiest method is to use the system's built-in tools. It works in Windows 10 And Windows 11 without installing additional software.

1. Open Parameters (Win + I) and go to the section Network and Internet → Wi-Fi.
2. Click on the name of your network (e.g. TP-Link_1234).
3. Scroll down to the block Properties and find the line Network frequency.

Here it will be indicated either 2.4 GHz, or 5 GHzIf this line is not present, your network is operating in compatibility mode (for example, 802.11n on 2.4 GHz), or the adapter driver does not support frequency display.

Update your Wi-Fi adapter driver|Try another method from the article|Check your router settings (the network may be operating in mixed mode)|Use a third-party utility (see Method 4)

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⚠️ Attention: In some Windows 10 builds (especially older ones), the "Network Frequency" line may be missing even if 5 GHz is supported. This doesn't mean your adapter isn't working at a higher frequency—the system simply isn't displaying the information.

Method 2: Via "Network Information" (alternative built-in method)

If the first method didn't work, try to get the data through Network and Sharing Center:

1. Right-click on the Wi-Fi icon in the tray (bottom right) and select Open Network and Internet settings.
2. In the window that opens, click Configuring adapter settings (in the right column).
3. Double-click on your active wireless connection (e.g. Wireless network).
4. In the status window, click Network information.

In the column "Frequency" You will see the value in megahertz (MHz). For example:

• 📡 2412 MHz - this is channel 1 on 2.4 GHz.
• 📡 5180 MHz - this is channel 36 on 5 GHz.

If the value is less than 5000 MHz - your network is running on 2.4 GHz, if more - on 5 GHz.

Method 3: Via the command line (for advanced users)

This method is suitable for those who prefer working with the console. It provides more technical details than the graphical interface.

1. Open Command line as administrator (Win + X → Terminal (Administrator)).
2. Enter the command:

   netsh wlan show interfaces

3. Find the line Radio Type (Radio Type).

Possible values:

• 📶 802.11n or 802.11g - almost always 2.4 GHz (unless otherwise stated).
• 📶 802.11ac or 802.11ax - maybe so 2.4 GHz, And 5 GHz (you need to look at additional parameters).

To clarify, run another command:

netsh wlan show networks mode=bssid

In the results, find your network and look at "Channel" (channel). If the channel number is greater 14, This 5 GHz.

⚠️ Attention: In some cases the team netsh may display incorrect information if the adapter driver doesn't support standard Windows requests. For accuracy, check the data against your router settings.

Method 4: Using WiFi Analyzer (visual analysis)

If Windows' built-in tools don't provide a clear answer, use a free utility. WiFi Analyzer (available in Microsoft Store). It will not only show your network frequency, but also visualize the channel load.

1. Install WiFi Analyzer from Microsoft Store.
2. Launch the program and go to the tab Analysis.
3. Find your network in the list. In the column "Frequency" will be indicated 2.4 GHz or 5 GHz.

Benefits of the program:

• 🔍 Shows channel congestion - will help you choose the least busy one for your router.
• 📊 Displays signal strength (in dBm) - useful for diagnosing coverage issues.
• 🔄 Updates data in real time - you can see how the frequency changes when reconnecting.

Alternatives WiFi Analyzer:

• 🛠️ NetSpot — a more advanced analyzer with coverage maps.
• 🛠️ inSSIDer - shows details about neighboring networks (including channel width).

How to determine the optimal channel for a router?

In the program WiFi Analyzer Go to the "Channel Rating" tab. Green bars indicate the least loaded channels. 2.4 GHz Select channels 1, 6 or 11 (they do not overlap). For 5 GHz — channels numbered 36–48 or 149–165 (depending on the region).

Method 5: Through the router settings (the most reliable)

If all the previous methods yielded inconsistent results, check the frequency directly in the router's web interface. This is the only way to find out. What frequency does the router itself support?, and not what frequency your PC is connected to.

1. Open your browser and enter the router's IP address (usually 192.168.0.1 or 192.168.1.1).
2. Log in (with login and password, usually admin/admin or indicated on the router sticker).
3. Find the section Wireless network (Wireless).

Depending on the router model (TP-Link, ASUS, Keenetic etc.) the path may differ:

If the router settings indicate the mode Auto or 2.4G/5G, this means that the network broadcasts on both frequencies simultaneously (but devices can connect to either of them).

⚠️ Attention: On some routers (for example, Zyxel Keenetic) networks 2.4 GHz And 5 GHz may have the same name (SSID). In this case, Windows automatically selects the frequency for the connection, and it can only be determined using the methods in this article.

Common problems and solutions

Sometimes technical issues can make it difficult to determine your Wi-Fi frequency. Let's look at some typical situations:

Problem 1: Windows shows 802.11ac, but the frequency is unknown.

• 🔧 Solution: Standard 802.11ac works only on 5 GHz, so if you see it in the network properties, it is definitely a high frequency.

Problem 2: The list of networks shows only one network, but the router is dual-band.

• 🔧 Solution: Maybe networks 2.4 GHz And 5 GHz have the same name (SSID). Separate them in the router settings (for example, add suffixes) _2G And _5G).

Problem 3: The adapter does not support 5 GHz, but the router outputs both frequencies.

• 🔧 Solution: Check the specifications of your Wi-Fi adapter (for example, in Device Manager). If it's older than 2012, it most likely only supports 2.4 GHz.

FAQ: Frequently Asked Questions about Wi-Fi Bandwidth

Is it possible to force a connection to 5GHz if Windows selects 2.4GHz?

Yes. To do this:

1. Separate the networks in the router settings (give them different names, for example MyWiFi_2G And MyWiFi_5G).
2. Manually connect to the network with the suffix _5G.
3. IN Windows settings disable the option Automatic connection for the network 2.4 GHz.

If your router doesn't allow you to separate networks, update its firmware or check the settings in the section Wireless Mode → Basic Settings.

Why is the speed on 5 GHz slower than on 2.4 GHz?

It's paradoxical, but possible reasons:

• 📉 Weak signal: 5 GHz It passes through walls worse. Check the signal level in WiFi Analyzer (if below -70 dBm, the speed drops).
• 📉 Interference: On 5 GHz Radar, cordless phones, or neighboring networks may be interfering. Change the channel in your router settings.
• 📉 Adapter Limitations: Older laptops (before 2015) often support 5 GHz only in standard 802.11n (max 450 Mbps).

Solution: Try moving closer to the router or changing the channel 5 GHz (for example, from 36 to 149).

How do I know if my laptop supports 5GHz?

Check it like this:

1. Open device Manager (Win + X → device Manager).
2. Expand the branch Network adapters and find the wireless adapter (for example, Intel Wi-Fi 6 AX200).
3. Right click → Properties → Advanced.
4. Look for parameters like Wireless Mode, 802.11n/ac or Band.

If there is one on the list 802.11ac or 802.11ax — the adapter supports 5 GHzIf only 802.11b/g/n - only 2.4 GHz.

Is it possible to change the Wi-Fi frequency on a router?

Yes, if your router is dual-band. To do this:

1. Go to the router's web interface (see Method 5).
2. Find the section Wireless network.
3. Turn off unnecessary frequency (for example, leave only 5 GHz, if all devices support it).

Please note: some devices (smart plugs, old printers) only work on 2.4 GHzBefore disabling, check their compatibility.

Why is my network sometimes on 2.4 GHz and sometimes on 5 GHz?

This is normal behavior if:

• 🔄 The router is in the "Secure Mode" mode. Smart Connect (automatic switching between frequencies).
• 🔄 The option is enabled in Windows Automatic connection to any available network with the same name.
• 🔄 Signal on 5 GHz weak, and the device switches to 2.4 GHz for stability.

To fix the frequency, separate the networks in the router settings (see FAQ above).