How do you know if your Wi-Fi is 2.4GHz or 5GHz?

Have you noticed that your Wi-Fi internet speed has suddenly dropped, or YouTube videos are starting to stutter? Or maybe a new smart device (like Roborock or Xiaomi Camera) refuses to connect to the network, even though the password is entered correctly? The reason often lies in incorrectly selected Wi-Fi frequencyModern routers broadcast simultaneously on two bands - 2.4 GHz And 5 GHz, but not all devices can work with both. Let's figure out how to accurately determine which frequency your router, phone, or laptop uses—and why this is important for a stable network.

Ranges 2.4 GHz And 5 GHz differ not only in speed, but also in coverage range, resistance to interference, and compatibility with technology. For example, old smartphones, printers, or smart light bulbs often support only 2.4 GHz, while iPhone 12 or Samsung Galaxy S23 can automatically switch between frequencies, but they don't always choose the optimal one. In this article, you'll find 5 proven methods Check the Wi-Fi frequency on any device, as well as tips on how to manually select the best band for your needs.

1. How to find out the Wi-Fi frequency on a router (via the web interface)

The most reliable way is to look into the router settings itself. Most modern models (TP-Link, ASUS, Keenetic, MikroTik) allow you to see the frequency each network broadcasts on and change it if necessary. Here's how:

  • 🌐 Open your browser and enter in the address bar 192.168.1.1 or 192.168.0.1 (the exact address is indicated on the router sticker).
  • 🔑 Enter your login and password (by default it is often admin/admin or admin/empty).
  • 📡 Go to the section Wireless network (or Wi-Fi, Wireless).
  • 🔍 Find the parameters Band or Frequency - it will be indicated there 2.4 GHz or 5 GHz.

On some routers (for example, Keenetic) networks on different frequencies can have separate names (for example, MyWiFi_2G And MyWiFi_5G). If you see two SSIDs, it means the router is broadcasting on both bands simultaneously. Please note: if the mode is specified in the settings Auto or 2.4G/5G, the router itself selects the frequency, and this can cause problems with connecting older devices.

Network name (SSID) for 2.4 GHz and 5 GHz|Operating mode (Auto/Only 2.4/Only 5)|Channel and its width|Maximum speed (up to 300 Mbps for 2.4 GHz or up to 1 Gbps for 5 GHz)-->

⚠️ Attention: If the mode is enabled in the router settings 802.11n/ac/ax (or Wi-Fi 4/5/6), but the range is not specified, the network can only work on 5 GHzOld devices (before 2012) will not be able to connect to it.

2. Checking Wi-Fi frequency on Windows 10 and 11

On laptops and PCs with Windows You can find out the frequency of the connected network without third-party programs, using the system's built-in tools. This method works for all versions, starting with Windows 7, but the interface may differ slightly.

Open Parameters (Win + I) and go to the section Network and Internet → Wi-FiClick on your network name, then select Properties. In the block Network properties find the line Protocol:

  • 📶 802.11n or 802.11g — the network operates on 2.4 GHz.
  • 🚀 802.11ac or 802.11ax — network on 5 GHz.

If this section is not present, use command line:

  1. Click Win + R, enter cmd and press Enter.
  2. Enter the command: 
    netsh wlan show interfaces
  3. Find the line Radio type (Radio Type). Values:
    • 802.11n — 2.4 GHz or 5 GHz (you need to check in your router settings).
    • 802.11ac - only 5 GHz.

3. Determining the Wi-Fi frequency on an Android smartphone

On Android There's no universal way to view the network frequency in the default settings—it all depends on the manufacturer and firmware version. However, there are several reliable methods:

Method 1: Via the app WiFi Analyzer (recommended)

Download the free app WiFi Analyzer (from farproc) from Google PlayAfter launch:

  1. Go to the tab List of AP (AP List).
  2. Find your network in the list - in the column Frequency will be indicated 2.4 GHz or 5 GHz.
  3. Please note the channel: 1-14 → 2.4 GHz; 36–165 → 5 GHz.

Method 2: Through the engineering menu (for advanced users)

On some smartphones (Samsung, Xiaomi, Huawei) you can use the hidden engineering menu:

  1. Open the app Telephone and enter the code: 
    ##4636##
  2. Select Wi-Fi Information (Wi-Fi Information).
  3. Look at the line Frequency — the value in MHz will be indicated there (for example, 2412 = 2.4 GHz, 5180 = 5 GHz).
⚠️ Note: Engineering menu codes may vary depending on the smartphone model. On some devices (OnePlus, Oppo) this method does not work.

Samsung|Xiaomi/Redmi|Huawei/Honor|iPhone|Other-->

4. Checking the frequency on iPhone and iPad (iOS)

On devices Apple (iPhone, iPad) There's no built-in way to see the frequency of the connected network, but there are workarounds. The easiest one is to use an app. AirPort Utility (Apple's utility for managing networks).

How to check:

  1. Download AirPort Utility from App Store (if not already installed).
  2. Open the app and tap on the icon Wi-Fi Scan (in the upper right corner).
  3. Select Scan and wait for the scanning to complete.
  4. Find your network in the list - in the column Band will be indicated 2.4 GHz or 5 GHz.

    5. If the app doesn't show the range, try an alternative method:

    • 📱 Connect to a Wi-Fi network.
    • 🔍 Open Settings → Wi-Fi and click on the symbol i next to the network name.
    • 📋 Look at the field Router (Router). If the IP address starts with 192.168., and the network name contains 5G or 5GHz - This 5 GHz.
    Why might my iPhone get stuck on 2.4 GHz?

    Even if your router supports 5 GHz, your iPhone sometimes sticks to 2.4 GHz due to a power-saving algorithm. To force it to use 5 GHz, try:

    1. Forget the network and reconnect.

    2. In the router settings, disable 2.4 GHz for 10 minutes, then turn it back on.

    3. Update iOS to the latest version (new versions have improved switching logic).

    5. How to check the Wi-Fi frequency on Smart TV and other devices

    Smart TVs (Samsung, LG, Sony, Xiaomi) and other gadgets (printers, cameras, speakers) often don't show the network frequency in the interface. Here's what you can do:

    For Smart TV:

    • 📺 On Samsung TV: Settings → General → Network → Network StatusIf the network name contains 5G - This 5 GHz.
    • 📺 On LG TV: Settings → Network → Wi-Fi Connection → Advanced. Look for the line Frequency.
    • 📺 On Android TV (For example, Xiaomi Mi TV): use the app WiFi Analyzer from Google Play.

For printers, cameras and smart devices:

Majority smart devices (For example, Xiaomi Mi Home, TP-Link Tapo) work only on 2.4 GHzIf the gadget does not connect:

  1. Check the supported frequencies in the instructions or on the manufacturer's website.
  2. In the router settings turn it off 5 GHz and leave only 2.4 GHz (temporarily).
  3. If the device connects, the problem is in the frequency.
Device Supported frequencies How to check
Samsung Galaxy S20+ 2.4 GHz, 5 GHz, 6 GHz (Wi-Fi 6E) Wi-Fi Settings → Advanced → Band
Xiaomi Roborock S7 2.4 GHz only Instructions or sticker on the device
Apple iPad Pro (2022) 2.4 GHz, 5 GHz, 6 GHz Application AirPort Utility
HP LaserJet Pro 2.4 GHz only (most models) Printer Control Panel → Network

6. Why is it important to know your Wi-Fi frequency and how to optimize it?

If your router broadcasts on both 2.4 GHz and 5 GHz under the same name (SSID), devices may connect to the less optimal frequency automatically. For example, iPhone or MacBook often get stuck on 2.4 GHz, even if 5 GHz free and faster. This leads to:

  • ⚡ Low speed (on 2.4 GHz maximum ~300 Mbit/s, on 5 GHz — up to 1 Gbit/s and higher).
  • 📶 Interference from neighboring networks (range 2.4 GHz overloaded in apartment buildings).
  • 🔌 Problems with connection old devices to 5 GHz.

How to optimize:

  • 🔧 Divide the networks: in the router settings, assign different names for 2.4 GHz And 5 GHz (For example, MyWiFi_2G And MyWiFi_5G).
  • 📊 Select a free channel: use WiFi Analyzerto find the least crowded channel in your range.
  • 🔄 Update your router firmware: New versions often improve the algorithms for switching between frequencies.
⚠️ Attention: In some countries (for example, in Russia) for 5 GHz Channel restrictions apply. Channels 100–140 may be blocked or require registration. Check your provider's personal account for local rules.

7. Common problems and their solutions

If you've determined the frequency, but the device still won't connect or is unstable, here are the causes and how to fix them:

Problem Possible cause Solution
The device does not see the network 5 GHz Old Wi-Fi adapter (before 2012) Use 2.4 GHz or update the adapter
Speed ​​on 5 GHz lower than 2.4 GHz Weak signal (walls, distance) Move your router or use a repeater
Constant breaks on 5 GHz Interference from microwaves or neighboring networks Change the channel in your router settings.
The smart device won't connect. Supports only 2.4 GHz, but the network is hidden Enable SSID visibility for 2.4 GHz

If none of the methods helped, try reset the router settings to factory (button Reset on the back panel) and reconfigure the networks. In 90% of cases, this solves connection issues.

FAQ: Answers to Frequently Asked Questions

My router supports Wi-Fi 6 (802.11ax). What frequency does it operate on?

Wi-Fi 6 (and Wi-Fi 6E) is working on both frequencies: 2.4 GHz And 5 GHz, and Wi-Fi 6E adds more 6 GHzHowever, a given network can only broadcast on one frequency. To find out which one, check your router settings or use the methods in this article.

Is it possible to force a device to always connect to 5GHz?

Yes, there are several ways:

  1. In the router settings turn it off 2.4 GHz (if all your devices support 5 GHz).
  2. Give the networks different names (eg. MyWiFi_5G) and connect manually.
  3. On Android use the app WiFi Managerto block connection to 2.4 GHz.

On iPhone And Mac forced connection to 5 GHz It's more difficult to set up - Apple devices choose the frequency themselves.

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

It's paradoxical, but it happens. Reasons:

  • 📡 Weak signal: 5 GHz It penetrates walls worse. Check the signal strength in the device settings.
  • 🔧 Suboptimal router settings: channel width 80 MHz may cause interference. Try 40 MHz.
  • 🚫 Interference: neighboring networks on the same channel. Use WiFi Analyzerto find a free channel.
How to check Wi-Fi frequency on MacBook?

On macOS hold down the key Option (⌥) and click the Wi-Fi icon in the menu bar. The drop-down list will display network information, including Channel (Channel) And PHY Mode (For example, 802.11ac means 5 GHz).

My router doesn't support 5 GHz. Should I upgrade?

If you have:

  • 📱 Modern devices (iPhone 11, Samsung Galaxy S20 and newer),
  • 💻 Laptop with Wi-Fi 5/6,
  • 🎮 Game console (PS5, Xbox Series X),
  • 🖥️ Tariff plan from a provider with a speed of > 100 Mbps,

That Yes, it's worth considering an upgrade. Router with 5 GHz (and better with Wi-Fi 6) will unlock the potential of your internet. If you only have older devices and a speed of up to 50 Mbps, that's enough. 2.4 GHz.

📖 Read also

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