How to determine whether your Wi-Fi operates on 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 Is it constantly freezing? Or maybe a new device stubbornly refuses to connect to the network, even though the password is entered correctly? The cause often lies in incorrectly selected Wi-Fi frequencyModern routers support two ranges - 2.4 GHz And 5 GHz, and each has its pros and cons. But how do you know which band your device is currently using?

In this article we will look at 5 reliable waysHow to determine the Wi-Fi frequency on a router, smartphone, laptop, or even a smart TV. You'll learn why some gadgets only "see" 2.4 GHz, how to manually switch between bands, and what to do if the network is unstable. And also— We'll reveal a little-known trick for analyzing the airwaves that will help you choose the clearest channel and increase your speed by 30–50%..

Why is Wi-Fi Frequency Important? The Difference Between 2.4 and 5 GHz

Before checking the frequency, let's figure out how the two main Wi-Fi bands differ and when to use which one.

2.4 GHz — the "old man" of the wireless networking world. Its main advantages:

• 📡 Longer range - the signal passes through walls and ceilings better than on 5 GHz.
• 🔄 Support for older devices — even 10-year-old technology (such as printers or smart plugs) typically only works in this range.
• 🏠 Less sensitivity to obstacles - suitable for large apartments or offices with thick walls.

But there are also serious disadvantages:

• 🐢 Low speed - up to maximum 300–450 Mbps (in practice often less due to interference).
• 📶 Airwave congestion — Not only Wi-Fi operates at this frequency, but also microwaves, wireless mice, and Bluetooth devices.
• 🔄 Only 3 non-intersecting channels — in apartment buildings, networks often overlap.

5 GHz — a modern standard with other characteristics:

• ⚡ High speed — to 1–2 Gbps (in theory) and 500–800 Mbps in practice.
• 📊 23 non-intersecting channels - less interference from neighbors.
• 🛡️ Support for modern technologies — MU-MIMO, Beamforming, WPA3.

However, there are pitfalls here too:

• 🏢 Weak signal through walls — range 5 GHz passes through obstacles worse.
• 📱 Not all devices support — budget smartphones, smart devices, or old laptops may not be able to see such a network.
• 📡 Shorter range — If the router is in one room and you are in another, the speed may drop.

Method 1: Checking the Wi-Fi frequency through the router settings

The most reliable method is to go to the router's web interface and look at the wireless network settings. This works on TP-Link, ASUS, Keenetic, MikroTik and other models.

Step-by-step instructions:

1. Find out Router IP address. Usually it is 192.168.0.1 or 192.168.1.1 (written on the sticker on the back of the device).
2. Open your browser and enter the address in the address bar. Click Enter.
3. Enter your login and password (by default it is often admin/admin or admin/empty).
4. Go to the section Wireless network (or Wi-Fi, Wireless).
5. Find the parameter Range, Band or Frequency. It will be indicated there 2.4 GHz or 5 GHz.

On some routers (for example, Keenetic) networks 2.4 And 5 GHz can be divided into two different names (SSID). In this case, the frequency is indicated next to the network name.

Make sure Wi-Fi is turned on|Find the "Wireless Network" section|Look at the "Band" parameter|Write down the current frequency for each SSID-->

⚠️ Attention: If the router settings indicate Auto (automatic frequency selection), this does not mean that the network operates simultaneously on 2.4 And 5 GHz. Usually the router selects one range for a specific SSIDTo use both, you need to create two separate networks with different names.

Example of a router interface TP-Link:

Method 2: Determining the frequency on Windows 10/11 without programs

If you have a laptop or PC with WindowsThe frequency of the connected network can be found using the system's standard tools. This method does not require installing any additional software.

How to check:

1. Click the Wi-Fi icon in the lower right corner of the taskbar (next to the clock).
2. Find your network in the list and click on it right mouse button.
3. Select Properties.
4. In the window that opens, find the line Protocol (Protocol). It will be indicated there 802.11n, 802.11ac or 802.11ax.
5. If there is an inscription nearby 5 GHz — your device is connected to the network on this frequency. If not, then 2.4 GHz.

Alternative way through Command line:

netsh wlan show interfaces

Find the line in the results Radio type (Radio type). It will be indicated there 802.11n (maybe 2.4, And 5 GHz) or 802.11ac/802.11ax (only 5 GHz).

⚠️ Attention: IN Windows There is no direct indication of frequency in the connection properties, so please refer to the standard 802.11If your adapter supports 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6), but connected via 802.11n, most likely you are using 2.4 GHz.

Method 3: Checking on Android and iPhone

On smartphones, determining the network frequency is more difficult, as manufacturers often hide this information. However, there are workarounds.

On Android:

1. Install the application WiFi Analyzer (or similar: NetSpot, WiFi SweetSpots).
2. Open the app and find your network in the list.
3. Look at the column Frequency or Band - it will be indicated there 2.4 GHz or 5 GHz.

On iPhone (iOS):

Unfortunately, Apple There's no direct way to find out the frequency of the connected network. However, you can use a workaround:

1. Install the application AirPort Utility (official from Apple).
2. Turn on the mode Wi-Fi Scanner (In some versions of iOS you need to hold the icon Wi-Fi in the control panel).
3. Find your network in the list - the frequency will be indicated in the details.

If apps don't show your frequency, try this trick:

• 🔍 Check the network name (SSID). If it contains 5G, 5GHz or Plus - This 5 GHz.
• 📱 Reconnect to the network from another device (for example, a laptop) and check the frequency there.

Why doesn't my iPhone show my Wi-Fi frequency?

Apple restricts access to low-level network information in iOS for security and interface simplification reasons. Unlike AndroidWhere manufacturers can add additional features, iOS strictly controls what data is available to the user. However, in some regions (such as the EU), due to regulatory requirements Apple may provide more information through hidden menus or official utilities like AirPort Utility.

Method 4: Analyzing the broadcast using specialized programs

If you need to know not only the frequency of your network, but also optimize its operation, use Wi-Fi analysis software. It will show all nearby networks, their channels, signal strength, and interference levels.

Best free tools:

• 🖥️ Acrylic Wi-Fi Home (Windows) - shows frequency, channel, signal strength and even supported standards (802.11n/ac/ax).
• 📱 WiFi Analyzer (Android) - visualizes channel load in the form of a graph.
• 🍎 NetSpot (macOS/Windows) — suitable for professional analysis with heatmapping.
• 🌐 inSSIDer (paid, but there is a trial version) - shows even hidden networks and supports Wi-Fi 6.

How to use Acrylic Wi-Fi Home:

1. Download and install the program from official website.
2. Start scanning (button Scan).
3. In the list of networks, find yours by name (SSID).
4. In the column Band the frequency will be indicated (2.4 GHz or 5 GHz).
5. Pay attention to the column Channel - it will show which channel is being used. If on 2.4 GHz This 1–13, and on 5 GHz — 36–165.

Sample report from Acrylic Wi-Fi:

SSID:         MyWiFi_5G
BSSID:        AA:BB:CC:DD:EE:FF
Band:         5 GHz
Channel:      48 (Width: 80 MHz)
Signal:       -55 dBm
Security:     WPA2-PSK (AES)
Standard:     802.11ac

⚠️ Attention: If your network uses channel width 40 MHz on 2.4 GHz, this can interfere with neighboring networks. In apartment buildings, it is better to use 20 MHz or go to 5 GHz.

Method 5: Determining the frequency by the router model and its indicator lights

If you don't have access to your router settings or connected devices, you can try to determine the frequency by device models or indicators.

By router model:

• 📋 Check the sticker on the back of your router. If it lists the standards 802.11ac or 802.11ax, the device supports 5 GHz.
• 🔍 Enter your router model into a search engine with a query specificationsThe manufacturer's website will indicate which bands are supported.
• 💡 Budget models (for example, TP-Link TL-WR840N) usually work only on 2.4 GHz.

According to indicators:

• 🟢 Some routers (for example, ASUS RT-AX88U) have separate indicators for 2.4 And 5 GHzIf only one is lit, the network is operating at the corresponding frequency.
• 🔄 On Keenetic The Wi-Fi indicator flashes blue when there is activity on 5 GHz and green on 2.4 GHz.

Examples of popular routers and their frequency support:

How to switch between 2.4 and 5 GHz if you need to change the frequency

If you find that your device is connected to a suboptimal frequency, you can manually switch. Here's how:

On the router:

1. Go to the router's web interface (as in Method 1).
2. Go to the section Wireless network.
3. If you have the same network on both frequencies, look for the option Band and select the desired range (2.4 GHz or 5 GHz).
4. If the networks are separated, connect to the desired one SSID (For example, MyWiFi_5G For 5 GHz).
5. Save the settings and reboot the router.

On your device (Windows/Android/iOS):

• 🔄 Disconnect from the current network.
• 🔍 Find the network in the list that matches the required frequency (for example, with the postfix 5G).
• 🔐 Connect to it by entering the password.

⚠️ Attention: Some devices (such as smart light bulbs) Xiaomi or printers HP) are working only on 2.4 GHzIf you disable this range on the router, they will lose connection. In such cases, it's best to leave both networks active, but with different names.

Common problems and their solutions

Users encounter common issues when using different Wi-Fi frequencies. Here's how to solve them:

Problem 1: The device does not see the network 5 GHz.

• 🔍 Check if your gadget supports it 5 GHz (for example, older laptops or smartphones may not support it).
• 📡 Make sure the range is enabled on your router 5 GHz (in settings Wireless → 5 GHz → Enable).
• 🔄 Reboot your router and device.

Problem 2: On 5 GHz slow speed or connection interruptions.

• 📡 Check the distance to the router - 5 GHz It passes through walls worse.
• 🔧 Change the channel to a less busy one (use WiFi Analyzer).
• 🔄 Reduce channel width with 80 MHz to 40 MHz for greater stability.

Problem 3: On 2.4 GHz constant interference.

• 🔧 Switch to the channel 1, 6 or 11 (they do not intersect).
• 📡 Reduce the transmission power in your router settings (if it is too high, it creates interference for your neighbors, and they will disturb you).
• 🔄 Turn off nearby devices that may cause interference (cordless phones, microwaves).

Problem 4: The router automatically switches devices between frequencies (Band Steering), but it works unstably.

• 🔧 Turn it off Band Steering in the router settings.
• 📡 Create two separate networks with different names (e.g. MyWiFi_2G And MyWiFi_5G).
• 🔄 Manually connect devices to the desired network.

FAQ: Answers to Frequently Asked Questions

Is it possible to use 2.4 and 5 GHz at the same time on one router?

Yes, almost all modern routers support it. simultaneous work on both frequencies. To do this you need:

1. Go to the router settings.
2. Make sure both networks (2.4 GHz And 5 GHz) are included.
3. Give them different names (SSID) so that devices can choose.

Some routers (eg. ASUS with function Smart Connect) combine both networks under a single name and automatically switch devices. However, this doesn't always work perfectly, so it's better to separate the networks.

Why does my device connect to 2.4 GHz even though 5 GHz is freer?

This can happen for several reasons:

• 📱 Device does not support 5 GHz (for example, old smartphones or smart devices).
• 📡 In the router settings disabled range 5 GHz.
• 🔧 Feature enabled Band Steering, which automatically switches devices, but sometimes makes mistakes.
• 📶 Signal 5 GHz too weak (for example, if you are far from the router).

Solution: Check support 5 GHz your device, enable the range on the router and disable Band Steering, if it interferes.

Which 2.4 GHz channel should I choose to avoid interference?

On frequency 2.4 GHz there is only 3 non-intersecting channels: 1, 6 And 11To minimize interference:

1. Use the program WiFi Analyzer or Acrylic Wi-Fito see which channels are occupied by neighboring networks.
2. Select that channel (1, 6 or 11), which is the least used.
3. Avoid channels 12–14 - They may be banned in your country or cause interference.

If all three channels are busy, try 5 GHz - There is more free space there.

Is it possible to increase Wi-Fi speed by changing the frequency?

Yes, but the effect depends on the situation:

• ⚡ If you have many devices and everyone is sitting on 2.4 GHz, switching some of them to 5 GHz will relieve the network and increase speed.
• 📶 If you far from the router, 5 GHz may work worse due to a weak signal - in this case 2.4 GHz more stable.
• 🔧 If on 2.4 GHz a lot of interference from neighbors, changing the channel to 1, 6 or 11 may help.

For maximum speed:

• Use 5 GHz with channel width 80 MHz (if the devices are near the router).
• Turn on standard 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6).
• Update your router firmware.

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

It seems counterintuitive, but it happens. Possible reasons:

• 📡 Weak signal — 5 GHz It penetrates walls worse. Check the signal level (it should not be lower than -60 dBm).
• 🔧 Suboptimal router settings — channel width 160 MHz It may be unstable, try it 80 MHz or 40 MHz.
• 📱 The device does not support high speeds on 5 GHz (for example, old laptops with 802.11n).
• 🔄 Radar interference (on the channels 52–144). Try the channels 36–48 or