How to check whether your Wi-Fi is 2.4 GHz or 5 GHz?

Have you noticed that your Wi-Fi internet speed has suddenly dropped and your video is not playing? YouTube Has your phone started to slow down? Or is your new smartphone stubbornly refusing to connect to the internet, even though your old laptop works without a problem? The reason could be Wi-Fi frequency — Your router or device may be using a non-optimal band (2.4 or 5 GHz), which affects speed, stability, and even compatibility.

In this article, we'll look at how to accurately determine what frequency your Wi-Fi is operating on - whether it's a router, smartphone, laptop, or Smart TVYou will learn not only the verification methods, but also How to choose the best range for your needs, avoiding interference from neighboring networks and microwaves. Also, why some devices only "see" 2.4 GHz, and what to do about it.

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

Ranges 2.4 GHz And 5 GHz These aren't just numbers, but two fundamentally different "channels" for data transmission. The choice of these determines:

  • 🔹 Internet speed: 5 GHz is theoretically faster (up to 1.3 Gbps versus 600 Mbps at 2.4 GHz) Wi-Fi 5), but the real difference depends on the conditions.
  • 🔹 Coverage range: 2.4 GHz passes through walls better, while 5 GHz “fades out” faster.
  • 🔹 Interference level: Microwaves, Bluetooth devices, and neighboring routers operate on 2.4 GHz, which creates congestion.
  • 🔹 Compatibility: old gadgets (eg iPhone 4 or budget smart bulbs) may not support 5 GHz.

For example, if your Samsung Smart TV If your router is connected to 5 GHz but constantly loses signal through two walls, switching to 2.4 GHz may solve the problem. Conversely, if you're downloading files on a laptop in the same room as your router, 5 GHz will give you a 30-50% speed boost.

⚠️ Please note: Some providers (eg. Rostelecom or Beeline) By default, 5 GHz is disabled in the router settings to "simplify" setup. Check this in the device's web interface.

Method 1: Checking the frequency on the router (via the web interface)

The most reliable method is to go into your router settings and see which bands are active. The instructions are universal for most models (TP-Link, ASUS, Keenetic, MikroTik etc.), but the paths to the menu may differ slightly.

Steps:

  1. Connect to the router's Wi-Fi network (or use a cable LAN).
  2. Open your browser and enter your router's IP address in the address bar. This is usually:
    • 192.168.0.1 or 192.168.1.1 (TP-Link, D-Link),
    • 192.168.8.1 (Huawei),
    • my.keenetic.net (Keenetic).
  • Enter your login and password (by default it is often admin/admin, but may be indicated on the router sticker).
  • Find the Wi-Fi settings section. Example paths:
    • TP-Link: Wireless → Wireless Settings,
    • ASUS: Wireless Network → General,
    • Keenetic: Wi-Fi → Hotspot.

      • Look for parameters like Band (Range), Frequency (Frequency) or Wireless ModeIf you see separate networks for 2.4 and 5 GHz (for example, MyWiFi_2G And MyWiFi_5G) — the router broadcasts on both ranges.

      Network name (SSID) for 2.4 and 5 GHz|Band or Frequency parameter|Channel for each band|Operating mode (802.11b/g/n for 2.4 GHz or 802.11a/n/ac/ax for 5 GHz)

      -->

      Router manufacturer Path to Wi-Fi settings Frequency parameter
      TP-Link (Archer, TL-WR) Wireless Mode → Settings Band: 2.4GHz / 5GHz
      ASUS (RT-AX, RT-AC) Wireless Network → General Band or Control Channel
      Keenetic Wi-Fi → Hotspot Frequency
      MikroTik Wireless → Interfaces Frequency Mode or Band
      Huawei Wi-Fi → Basic Settings Network Mode (For example, 802.11n/ac for 5 GHz)
      ⚠️ Attention: If the mode is enabled in the router settings Auto (Auto) for the range, the device automatically selects the frequency depending on the load. This can lead to unexpected "jumps" between 2.4 and 5 GHz.

      Method 2: Checking on Windows (laptop/PC)

      If you have a laptop or PC with a Wi-Fi adapter, you can determine the current network frequency without third-party programs using built-in tools Windows 10/11.

      Instructions:

      1. Click Win + X and select device Manager.
      2. Expand the branch Network adapters and find your Wi-Fi module (for example, Intel Wi-Fi 6 AX200 or Qualcomm Atheros QCA9377).
      3. Right click on it → Properties → tab Additionally.
      4. On the list Property find Preferred Band (Preferred range) or Wireless Mode. This will indicate which band the device is connected to.

      Alternative method (for Windows 11):

      1. Open Settings → Network and Internet → Wi-Fi.
      2. Click on the current network → Properties.
      3. Scroll down to the block Network information. It may be indicated here. Radio type (For example, 802.11ac means 5 GHz).

    If your laptop does not “see” the 5 GHz network, check:

    • 🔧 Adapter compatibility: older models (eg. Intel Centrino Wireless-N 1000) work only at 2.4 GHz.
    • 🔧 Router settings: 5 GHz may be disabled in the web interface.
    • 🔧 Drivers: Update them via device Manager (right button on the adapter → Update driver).

      • Method 3: Checking on Android and iPhone

      Mobile devices don't always show the frequency of the connected network out of the box, but there are workarounds.

      For Android:

      1. Install the application WiFi Analyzer (from VREM Software) or NetSpot.
      2. Open the app and go to the tab List of networks or Channel Graph.
      3. Find your network in the list - the frequency will be indicated next to it (for example, 2.4 GHz (Ch. 6) or 5 GHz (Ch. 36)).

      For iPhone (iOS):

      Apple has hidden frequency information from the default settings, but it can be found indirectly:

      1. Connect to a Wi-Fi network.
      2. Open Settings → Wi-Fi and click on the symbol i next to the network name.
      3. Look at the field Router (Router). If the IP address starts with 192.168., it won't help, but if you see 5GHz in the network name (for example, MyWiFi-5G) - the range is obvious.
      4. For an accurate check, use the app AirPort Utility (download in App Store):
        • Open the app → Wi-Fi Scanner (in the top menu).
        • Click Scan and find your network in the column Band the frequency will be indicated.
    📊 What smartphone do you have?
    Android
    iPhone
    Another brand
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    If your iPhone doesn't see the 5 GHz network, check:

    • 📱 Device model: iPhone 4/4S and older do not support 5 GHz.
    • 📱 Router settings: some Keenetic or ASUS hide SSID for 5 GHz by default.
    • 📱 Regional settings: Some countries (e.g. Japan) use non-standard 5 GHz channels that may not be supported.

    Method 4: Checking on Smart TV and other devices

    Smart TV, game consoles (PS5, Xbox) and even some printers connect to Wi-Fi, but they don't always display the range. Here's how to find out the frequency:

    For Samsung Smart TV:

    1. Open Settings → General → Network → Open network settings.
    2. Select your Wi-Fi network and look at Security type And Frequency (if any).
    3. If there is no information, try connecting to the network with the name ..._5G (if it is on the list).

    For LG Smart TV (webOS):

    1. Press and hold the button Settings on the remote control → All settings → Network → Wi-Fi connection.
    2. Click Additional settings → List of networks.
    3. If there are two networks with the same name in the list (for example, MyWiFi And MyWiFi-5), the second is 5 GHz.

    For Sony Bravia:

    On Android TV from Sony The frequency can be found through the application WiFi Analyzer (install from Google Play on TV).

    Why might my TV not see 5 GHz?

    Many budget models Smart TV (especially those released before 2018) are equipped with Wi-Fi adapters that only work at 2.4 GHz. This applies, for example, to some lines TCL, Hisense and even old ones Samsung Series 5/6If your TV doesn't find a 5 GHz network, check its specifications on the manufacturer's website - it usually lists the supported standard (for example, 802.11 b/g/n means only 2.4 GHz).

    For game consoles:

    • 🎮 PlayStation 5: go to Settings → Network → Set up Internet connectionAt the network selection stage, click Parameters - if there is an option 5 GHz, the set-top box supports it.
    • 🎮 Xbox Series X/S: Settings → General → Network Settings → Advanced Settings → Alternate MAC AddressHere you can manually select the range.

    Method 5: Using the Command Line (Advanced)

    If you prefer console commands, you can find out your Wi-Fi frequency via Command line (Windows) or Terminal (macOS/Linux).

    For Windows:

    netsh wlan show interfaces

    Look for the line Radio type (Radio Type). For example:

    • 802.11n — it can be both 2.4 and 5 GHz (you need to look at the channel).
    • 802.11ac or 802.11ax - exactly 5 GHz.
    • 802.11g - only 2.4 GHz.

    To see the channel (and indirectly the frequency), run:

    netsh wlan show networks mode=bssid

    Look in the results Channel:

    • Channels 1–14 — 2.4 GHz.
    • Channels 36–165 — 5 GHz.

    For macOS/Linux:

    IN macOS perform in Terminal:

    networksetup -listallhardwareports

    Then:

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

    In the results column CHANNEL will show the channel number.

    IN Linux (For example, Ubuntu):

    iwlist wlan0 frequency

    Or for the current connection:

    iwconfig wlan0

    Look for the line Frequency:2.412 GHz or Frequency:5.18 GHz.

    ⚠️ Attention: Commands for macOS may not work on newer versions of the system (starting from Ventura), as Apple restricts access to low-level network data. In this case, use the app Wireless Diagnostics (built into the system).

    Method 6: Analysis of surrounding networks (for optimization)

    If you want to know not only your frequency, but also optimize Wi-FiAnalyze channel load. This will help avoid interference from neighboring routers.

    Use programs:

    • 🖥️ WiFi Analyzer (Windows/Android) - shows all networks around, indicating channels and signal strength.
    • 🖥️ NetSpot (macOS/Windows) — creates a heat map of coverage and analyzes interference.
    • 🖥️ inSSIDer (Windows/macOS) is a professional tool for channel selection.

    What to do with the data:

    1. If all channels on 2.4 GHz are loaded (especially 1, 6, 11), try switching to 5 GHz.
    2. On 5 GHz, select a channel with a minimum number of networks (e.g. 149–165 usually freer).
    3. If your router supports 160 MHz (in standard Wi-Fi 6), turn on this mode for maximum speed.

    How to choose the optimal frequency: 2.4 or 5 GHz?

    Now that you know what frequency your Wi-Fi operates on, the only thing left to decide is whether it needs to be changed. Here are some quick recommendations:

    Scenario Recommended range Cause
    Watching 4K videos, playing online games, downloading files 5 GHz Higher throughput, less interference
    Connecting devices in different rooms (2+ walls) 2.4 GHz Better penetration through obstacles
    Smart home (lamps, sockets, cameras) 2.4 GHz Most IoT devices do not support 5 GHz.
    Many neighboring networks within range 5 GHz Less channel congestion
    Stability is more important than speed (e.g. video calls) 2.4 GHz (if the signal is weak) or 5 GHz (if the signal is strong) 2.4 GHz is more stable at the edge of the coverage area

    If your router supports Wi-Fi 6 (802.11ax), you can use both ranges simultaneously with technology Band SteeringIn this case, the devices will automatically select the optimal frequency. To enable this feature:

    1. Go to your router settings.
    2. Find the section Wi-Fi → Additional settings (or Smart Connect at ASUS).
    3. Enable the option Band Steering or Smart Connect.
    4. Make sure you have the same network name (SSID) for 2.4 and 5 GHz.

    FAQ: Frequently Asked Questions about Wi-Fi Frequencies

    My router doesn't show the 5 GHz option. What should I do?

    Possible reasons:

    • Your router does not support 5 GHz (check the model on the manufacturer's website).
    • The function is disabled in the settings (look for Wireless Mode or Band).
    • Outdated firmware - update it in the section System → Software Update.
    • Regional restrictions: In some countries (for example, Russia until 2021), some 5 GHz channels were blocked. Check your router's country settings.
    Is it possible to use 2.4 and 5 GHz at the same time?

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

    1. Enable both ranges in settings.
    2. Set the same network name (SSID) and password for 2.4 and 5 GHz, but different channels.
    3. Devices will connect to the available range automatically.

    If you want to separate networks (for example, for IoT devices), set different names, for example MyWiFi_2G And MyWiFi_5G.

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

    It's paradoxical, but possible reasons:

    • Weak signal: 5 GHz has difficulty passing through walls. Check the signal strength in your device settings.
    • Narrow channel: if the channel is set in the router 20 MHz instead of 40/80/160 MHz, the throughput drops.
    • Interference from radars or weather stations (on channels 52–144 in some countries).
    • Legacy standard: If your router or device only supports Wi-Fi 4 (802.11n), 5GHz speed may be slower than expected.

    Solution: Try manually selecting a 5GHz channel with minimal traffic (e.g. 149 or 161) and set the channel width 80 MHz.

    Which 5GHz channel should I choose for maximum speed?

    For Wi-Fi 5/6 recommended:

    • Channel width: 80 MHz (or 160 MHz, if supported).
    • Channel number: in range 36–48 or 149–165 (they are less susceptible to DFS interference).

    Use WiFi Analyzerto find the clearest channel in your area.

    Is it possible to increase the range of 5GHz?

    The 5 GHz range is limited by physics, but coverage can be improved slightly:

    • Place the router in the center of the apartment, away from walls and metal objects.
    • Use external antennas (if your router supports them).
    • Turn on technology Beamforming in the router settings (it focuses the signal on the devices).
    • Install a 5 GHz repeater or mesh system (e.g. TP-Link Deco).

    If nothing helps, leave 2.4 GHz for distant devices, and use 5 GHz for nearby ones.

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