How to determine the frequency of a Wi-Fi router: 2.4 GHz or 5 GHz - working methods

Have you noticed that your internet speed on some devices is dropping sharply, even though your router is providing a stable signal? Or are you trying to connect a smart TV that isn't seeing your network? The problem could be... Wi-Fi frequency — modern routers broadcast simultaneously on two ranges: 2.4 GHz And 5 GHz, but not all devices support both. Let's figure out how to find out exactly what frequency your router operates on and why this is critical for network stability.

The problem is that many manufacturers (for example, TP-Link or ASUS) by default give both networks the same name (SSID). As a result, a smartphone or laptop automatically connects to a less crowded band—not always the fastest one. And some gadgets (like budget ones) IoT devices or old printers) generally only work on 2.4 GHzWithout knowing your current frequency, you risk wasting time on pointless router reboots or resets.

In this article - 5 Proven Ways to Determine Your Wi-Fi Frequency, including hidden methods for devices without access to the router's web interface. Finally, a compatibility table of popular devices with the 2.4/5 GHz bands will help you avoid connection errors.

1. Checking via the router's web interface

The most reliable way is to access your router's control panel. The instructions are universal for most models (Keenetic, Zyxel, MikroTik etc.), but the paths to the settings may differ slightly. You will need:

• 🌐 IP address of the router (usually 192.168.1.1 or 192.168.0.1).
• 🔑 Login and password (often by default) admin/admin).
• 💻 A device connected to the router's network (via cable or Wi-Fi).

Open your browser and enter the IP address in the address bar. Find the section in the menu Wireless network (or Wi-Fi, Wireless). For example:

• IN TP-Link: Basic → Wireless.
• IN ASUS: Wireless Network → General.
• IN Keenetic: Wi-Fi → Hotspot.

Look for the field Band (Range) or Frequency (Frequency). It will be indicated there. 2.4 GHz or 5 GHzIf the settings show two separate networks, it means the router is broadcasting on both bands simultaneously. Please note: Some models (eg. Xiaomi Mi Router 4A) do not support 5 GHz, even if it is indicated in the specifications.

Network name (SSID) for 2.4 GHz and 5 GHz|Channel Width setting|Operating mode (802.11n/ac/ax)|Maximum connection speed-->

⚠️ Attention: If the router settings do not explicitly indicate the frequency, but there is an option Smart Connect (at ASUS) or Band Steering (at Netgear), then the device automatically distributes clients between bands. In this case, the current frequency can only be determined using third-party utilities (see section 3).

2. Network name (SSID) analysis

Many routers add a suffix to the network name by default, indicating the frequency. For example:

• 📶 MyWiFi_2G or MyWiFi-2.4 — 2.4 GHz network.
• 📶 MyWiFi_5G or MyWiFi-5 - 5 GHz network.

View the list of available networks on your device:

• On Windows: Click on the Wi-Fi icon in the tray → Network and Internet → Wi-Fi.
• On Android: Settings → Wi-Fi.
• On iOS: Settings → Wi-Fi.

If you see two networks with the same name but different suffixes, this is frequency separation.

⚠️ Exception: some operators (eg Rostelecom or Beeline) configure the routers so that both networks have the same name (SSID). In this case, there will be no suffixes, and other methods will have to be used.

Yes, I see 2G and 5G in the names|No, both networks have the same name|I don't know, I've never checked|I only have one network-->

3. Using mobile applications

If you don't have access to your router (for example, you're connected to someone else's network), you can determine the frequency using Wi-Fi analyzerThese apps show all nearby networks, indicating their range, channel, and signal strength. The best options are:

• 📱 WiFi Analyzer (Android) - free, no unnecessary fluff.
• 📱 NetSpot (iOS/Android/Windows) - the paid version provides advanced analytics.
• 📱 Fing (cross-platform) - shows the frequency and MAC addresses of devices.

How to use (using example) WiFi Analyzer):

1. Install the application and open it.
2. Go to the tab AP List (Access Points).
3. Find your network in the list - in the column Band will be indicated 2.4 GHz or 5 GHz.

🔍 AdviceIf you see two networks with the same name but different channels (for example, channel 6 and channel 36), it means the router is broadcasting on both bands. Channels 1–14 are in the 2.4 GHz band, and 36–165 are in the 5 GHz band.

4. Command line (Windows/macOS/Linux)

For experienced users there is a way to check through terminalIt works on any device connected to the router's network.

🖥️ On Windows:

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

   netsh wlan show interfaces

3. Find the line Channel (Channel). If the value is from 1 to 14, it is 2.4 GHz; if it is 36 or higher, it is 5 GHz.

🍎 On macOS:

1. Open Terminal (Applications → Utilities).
2. Enter:

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

3. Look for the line channel.

🐧 On Linux:

1. Run in terminal:

   iwlist wlan0 channel

   (replace wlan0 to the name of your Wi-Fi adapter).

2. The output will indicate the current channel and frequency.

⚠️ Note: If you are connected to a network with technology Band Steering (like Ubiquiti or Ruckus), the command line may only show one frequency, although in reality, the router dynamically switches devices between bands. In this case, trust the data from the web interface or specialized utilities.

5. Checking via device settings (Android/iOS/Windows)

Some operating systems display frequency information directly in the connection settings. Let's look at popular platforms:

🤖 Android (clean or with Samsung/MIUI shell):

1. Go to Settings → Wi-Fi.
2. Tap on your network name.
3. In some firmware (for example, Samsung One UI) there will be a line Frequency or Standard (For example, 802.11ac means 5 GHz).

🍎 iOS (iPhone/iPad):

Apple doesn't show the frequency directly, but you can use a workaround:

1. Install the application AirPort Utility (official from Apple).
2. Enable the mode in the application settings Wi-Fi Scanner.
3. Run the scan - the results will include a column Band.

🪟 Windows 10/11:

1. Click on the Wi-Fi icon in the tray → Network properties.
2. Scroll to the block Properties.
3. Line Network range will indicate 2.4 or 5 GHz.

📺 Smart TVs (LG/Samsung/Sony):

In the Wi-Fi menu of most Smart TV The frequency is displayed when selecting a network. For example, on LG WebOS:

1. Settings → Network → Wi-Fi connection.
2. Select your network (do not connect!).
3. Range information will appear at the bottom of the screen.

Comparison table: 2.4 GHz vs. 5 GHz

To understand which frequency is best for your needs, explore the key differences:

💡 When to choose 2.4 GHz:

• 📡 You need maximum range (for example, for a summer house or a large office).
• 🖨️ Connect an old device (printer, IP camera, smart plug).
• 🏠 Lots of obstacles (walls, furniture).

⚡ When to choose 5 GHz:

• 🎮 Online gaming or 4K streaming (high speed required).
• 🏢 Little interference from neighbors (for example, in a private house).
• 📱 All devices support 5 GHz (smartphones after 2018, laptops).

Common mistakes and how to avoid them

When determining the Wi-Fi frequency, users often encounter serious problems:

1. Mistake 1: Confusing 5G (Wi-Fi) and 5G (mobile network)
   

   📌 MyWiFi_5G in the network name means 5 GHz, not 5G mobile internet! These are different technologies. Mobile 5G operates at frequencies of 3.5 GHz and above and is not related to Wi-Fi.

2. Error 2: Ignoring channel settings
   

   On 2.4 GHz, channels 1, 6, and 11 do not overlap. If the router is on channel 3, it will conflict with neighboring networks on channels 1 and 6. Use apps like WiFi Analyzerto select the least loaded channel.

3. Error 3: Router firmware is not updated
   

   In older versions of software (especially on D-Link or Tenda) 5 GHz support may not be available, even if the hardware supports it. Update the firmware via the web interface!

🔧 How to fix:

• 🔄 Restart your router if the frequency is not detected correctly (sometimes clearing the cache helps).
• 📡 Divide networks into different ones SSID (For example, MyWiFi_2 And MyWiFi_5) to manage connections manually.
• 🛠️ Turn it off Smart Connect, if stable operation at a specific frequency is required.

⚠️ Attention: On some routers (for example, Huawei HG8245 (From providers) access to Wi-Fi settings is blocked. In this case, the frequency is determined only through third-party utilities or by the network name.

FAQ: Answers to frequently asked questions

netsh wlan set profileparameter name="NetworkName" connectionmode=manual