How to check whether your Wi-Fi router operates on 2.4, 5, or 6 GHz

Have you ever noticed that your laptop is slow when it comes to internet access, even though your smartphone is blazing fast? Or why do some smart bulbs refuse to connect to the internet, even though your phone has no problem? The reason is often... Wi-Fi frequency, which band your router operates on. 2.4 GHz, 5 GHz, and now 6 GHz—how do you know which one is active right now?

Many users don't even realize that their router can simultaneously broadcast multiple networks on different frequencies. Meanwhile, choosing the wrong frequency can reduce speeds by 2-3 times, create interference with neighboring networks, or even block connections for older devices. In this article, we'll cover all the testing methods—from standard router settings to hidden commands in Windows and mobile apps.

Don't rush to look for a "magic button" on the router's body—it's not there. The frequency is determined by software, and there are at least five effective methods for this. We'll cover them all, from the simplest to the most advanced, and also explain why some devices only "see" 2.4 GHz, while others see all three bands.

Important: If you have never changed your router settings, it is most likely running on 2.4 GHz by default. But modern models (especially with support Wi-Fi 6/6E) often activate 5 GHz automatically. Here's how to check this more precisely.

1. Checking via the router's web interface (universal method)

The most reliable way is to log into your router's control panel. This method works on TP-Link, ASUS, Keenetic, MikroTik and other brands, although the paths to the settings may differ slightly.

To get started, connect to the router's network (via Wi-Fi or cable) and open a browser. Enter one of the standard IP addresses in the address bar:

• 🔹 192.168.0.1 - for most models D-Link, Tenda, Zyxel
• 🔹 192.168.1.1 — TP-Link, ASUS, Mercusys
• 🔹 192.168.8.1 - some versions Huawei
• 🔹 my.keenetic.net — for routers Keenetic

If none of the addresses opens the panel, look for the correct IP address on the sticker on the bottom of the router (next to the login information). After entering the address, you will be asked to enter your username and password—usually admin/admin or admin/1234 (the exact details are also on the sticker).

Further, the algorithm depends on the model:

• 🔧 On TP-Link: go to Wireless → Wireless SettingsThere will be separate tabs for 2.4 GHz and 5 GHz.
• 🔧 On ASUS: open Wireless Network → General. Ranges are displayed as separate networks (eg. ASUS_5G).
• 🔧 On Keenetic: in the menu Wi-Fi Network → Access Point You will see two networks with the frequency indicated.

⚠️ Attention: If you see only one network in your router settings without a frequency indication, it's operating exclusively on 2.4 GHz. To activate 5 GHz, you may need to update the firmware or enable the 5 GHz mode. 11ac (Wi-Fi 5) manually.

Some routers (eg. Xiaomi or Huawei) combine both frequencies under one network name (function Smart Connect). In this case, the frequency is selected automatically, and it can only be viewed through third-party utilities (more on that below).

2. Determining the frequency by the Wi-Fi network name (SSID)

Many manufacturers add suffixes to the network name by default, indicating the frequency. For example:

• 📶 Keenetic-1234 — 2.4 GHz
• 📶 Keenetic-1234_5G — 5 GHz
• 📶 TP-Link_ABCD_6G — 6 GHz (Wi-Fi 6E)

Check the list of available networks on your phone or laptop. If you see two networks with the same prefix and suffixes, _2G, _5G or _6G, which means the router broadcasts both frequencies. By connecting to a network with the suffix 5G, you automatically use the 5 GHz band.

However, not all routers label networks this way. For example, ASUS can call the networks simply ASUS And ASUS_5G, A MikroTik doesn't add any marks at all. In this case, you'll have to use other methods.

What to do if there are no suffixes? Try temporarily changing the network name (SSID) in the router settings by manually adding _2G or _5GThis will help avoid confusion in the future.

3. Checking frequency via mobile apps

If you don't want to mess with your router settings, you can use specialized smartphone apps. They show not only the frequency but also the channel, signal strength, and even the neighbors' network load.

Top 3 apps for Android and iOS:

• 📱 WiFi Analyzer (Android) - free, shows range (2.4/5/6 GHz), channel and signal strength.
• 📱 NetSpot (Android/iOS) - A detailed network map with frequency information and channel selection recommendations.
• 📱 Fing (Android/iOS) — determines the frequency of the connected network and scans devices on it.

How to use:

1. Install one of the applications and open it.
2. Connect to your Wi-Fi network.
3. In the main window, find the name of your network (SSID) - the frequency will be indicated next to it (2.4 GHz, 5 GHz or 6 GHz).
4. IN WiFi Analyzer you can switch to the tab Channel Graphto see what channel and frequency neighboring networks are operating on.

Example of display in WiFi Analyzer:

SSID:         MyWiFi_5G
BSSID:        AA:BB:CC:DD:EE:FF
Frequency:    5.180 GHz (Channel 36)
Signal:       -55 dBm

⚠️ Attention: On iPhone, apps are not allowed to directly scan Wi-Fi networks due to iOS restrictions. Use NetSpot or Fing — They work through geolocation and router data, but may not always show the frequency accurately.

4. Commands for Windows, macOS, and Linux

If you prefer system tools, you can determine your Wi-Fi frequency using the command line or terminal. This method is suitable for advanced users.

For Windows:

1. Open Command line (Win + R → enter cmd).
2. Run the command:

   netsh wlan show interfaces

3. Find the line Channel And Radio type. For example:

   Radio type: 802.11ac # is 5 GHz
   Channel        : 44

For macOS:

1. Open Terminal (through Spotlight or Programs → Utilities).
2. Enter:

   airport -I | grep channel

3. If the channel is > 14, then it's 5 GHz. For example, channel 36 = 5 GHz.

For Linux:

1. Open terminal and run:

   iwlist wlan0 frequency

   (replace wlan0 to your interface, if necessary).

2. The output will contain lines like Frequency:2.412 GHz or Frequency:5.180 GHz.

Channels 1–14 are always assigned to 2.4 GHz, and channels 36–165 are assigned to 5 GHz. Channels 1–11 (in the US) or 1–13 (in Europe) for 2.4 GHz may overlap, causing interference.

Open command prompt/terminal|

Enter the command for your OS|

Find the line with Channel or Frequency|

Check the channel against the range table-->

5. Hidden Settings: How to Find the Frequency on Routers with Smart Connect

Many modern routers (for example, ASUS AiMesh, Netgear Orbi or TP-Link Deco) use technology Smart Connect (or Band Steering). It automatically switches devices between 2.4 GHz and 5 GHz, hiding the actual frequency from the user. How can it be determined?

Ways to bypass Smart Connect:

• 🔍 Disable Band Steering in the router settings (usually in the section Wireless Network → Smart Connect). After this, the networks will split and you will see both frequencies.
• 🔍 Use apps like WiFi Analyzer - they show the real frequency even with Smart Connect active.
• 🔍 Connect an older device that only supports 2.4 GHz (e.g. Tuya smart socket (or an old laptop). If it connects, the 2.4 GHz network is active.

On routers Keenetic with it turned on Smart Wi-Fi The frequency is determined by the network name:

• 📡 If the network is called Keenetic-XXXX - this is 2.4 GHz.
• 📡 If Keenetic-XXXX-5 — 5 GHz.

On ASUS With AiMesh check the section Administration → System → Wireless Network SettingsThere may be an option here. Lane separation - turn it on to see both networks separately.

⚠️ Attention: Disabling Smart Connect may temporarily interrupt the connection on some devices. After checking, be sure to re-enable the feature if you need it.

6. Wi-Fi channel and frequency mapping table

To avoid confusion in the channels, here is a summary table for the main ranges:

If your router is operating on a channel 165, this is the upper limit of 5 GHz (5.825 GHz), which may not be supported by older devices. Channels 12–14 in the 2.4 GHz range are only permitted in Japan and may cause interference in Europe.

How to choose the optimal channel? Use apps like WiFi Analyzerto see which channels are least crowded by your neighbors. For example, if everyone around you is on channel 6 (2.4 GHz), switch to channel 1 or 11.

Why don't channels 1, 6 and 11 intersect?

In the 2.4 GHz band, a single channel is 20 MHz wide, but the signal is spread by an additional ±10 MHz on each side. Channels 1, 6, and 11 are arranged so that their peaks do not overlap: 1 (2.412 GHz), 6 (2.437 GHz), 11 (2.462 GHz). All other channels overlap, creating interference.

7. Common problems and solutions

Sometimes, subtle issues can make it difficult to determine the frequency. Let's look at the most common ones:

Problem 1: The router does not show the 5 GHz network in the settings.

• 🔧 Check if your model supports 5 GHz (the standard should be on the box or in the specifications) 802.11ac or 802.11ax).
• 🔧 Update your router firmware via the web interface.
• 🔧 In some countries (for example, Israel), the 5 GHz band may be limited. Check your router's regional settings.

Problem 2: The device does not see the 5 GHz network.

• 📱 Old smartphones (before 2015), smart bulbs Xiaomi Yeelight or cameras TP-Link Tapo often only work on 2.4 GHz.
• 📱 On laptops, check if the Wi-Fi adapter supports 5 GHz (via Device Manager → Network Adapters).
• 📱 The mode may be enabled in the router settings 802.11n only (2.4 GHz). Switch to 802.11ac or 802.11ax.

Problem 3: The speed at 5 GHz is lower than at 2.4 GHz.

• 🚀 Check if your router is in a metal cabinet or behind a thick wall—5 GHz has a harder time passing through obstacles.
• 🚀 Make sure the channel width is set to 80 MHz (for 5 GHz) in the router settings.
• 🚀 If there are a lot of networks nearby on channels 36–48, switch to 149–165 (they are usually freer).

FAQ: Answers to Frequently Asked Questions

My router supports Wi-Fi 6E. How can I check if 6 GHz is working?

The 6 GHz network will be displayed in the list of available networks with the suffix _6G or _6EYou can also use the app WiFi Analyzer (Android) - It shows the 6 GHz band separately. Please note that Windows 10 does not support 6 GHz - You need Windows 11 and a compatible adapter (for example, Intel AX210).

Is it possible to force a router to work only on 5 GHz?

Yes, find the section in your router settings Wireless network and turn off 2.4 GHz broadcasting. However, keep in mind that some devices (for example, Amazon Echo Dot 2nd generation smart speakers) will not be able to connect to such a network. It is better to leave both frequencies, but give them different names (for example, MyWiFi_2G And MyWiFi_5G).

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

The 2.4 GHz band is overloaded - it is used not only by Wi-Fi, but also by Bluetooth devices, microwaves, wireless mice, and even some wireless cameras. Furthermore, 2.4 GHz has fewer non-overlapping channels (only 3: 1, 6, 11), which leads to interference. 5 GHz offers more channels and a wider bandwidth (up to 160 MHz), resulting in higher speeds.

How do I know what frequency my device is connected to?

On Android: open WiFi Analyzer → tab ConnectionOn . Windows: run the command netsh wlan show interfaces and find the line ChannelOn . macOS: V Terminal enter airport -I | grep channelIf the channel is > 14 → it is 5 GHz.

Can a router operate on 2.4 and 5 GHz simultaneously?

Yes, almost all modern routers (starting from 802.11n) support simultaneous work on both frequencies. This is called dual band (dual-band). Some models (for example, ASUS RT-AX88U) also support tri-band (one 2.4 GHz network and two 5 GHz networks for load balancing).