Modern wireless networks operate in two main frequency bands, and the stability of your internet connection depends on the correct frequency selection. Users often wonder how to test a Wi-Fi network's GHz range to determine which access point their device is currently connected to. The difference between 2.4 GHz and 5 GHz is dramatic: the former offers longer range but lower speeds, while the latter offers higher speeds but a shorter range.
Determining your current frequency is essential for diagnosing speed issues or signal dropouts. If you're far from your router but trying to play online games, you probably need 2.4 GHz. In cases where you need to download a large file or watch a 4K video near the router, it's a priority 5 GHzIn this article, we'll take a detailed look at methods for checking frequency on various operating systems.
Why is it important to distinguish between WiFi network frequencies?
Understanding the differences between frequencies helps you optimize your home network and eliminate dead zones. Range 2.4 GHz heavily loaded with neighboring routers, microwaves, and Bluetooth devices, which often leads to interference. On the contrary, 5 GHz offers more free channels and channel width up to 160 MHz, which is critical for modern gadgets.
Many modern routers use technology Smart Connect, combining both bands into a single network with the same name. In such cases, the device itself decides which frequency to operate on, which isn't always effective. The 5 GHz frequency loses up to 80% of the signal power when passing through one main wall, while 2.4 GHz penetrates barriers much better. Therefore, manual checking and switching can save the situation.
Furthermore, older devices may not support newer communication standards. If your smartphone or laptop is more than 10 years old, it may not be able to see the high-frequency network. Checking your current connection parameters allows you to quickly determine whether your equipment is operating at its limits or whether your router is configured incorrectly.
Checking WiFi Frequency on Android Smartphones
On Android, testing methods may vary depending on the OS version and manufacturer (Samsung, Xiaomi, and others). In most cases, the information is hidden in additional menus that aren't immediately visible. Accessing the engineering menu or using third-party utilities is often required to obtain accurate data.
The easiest way is to use the built-in system tools, if the manufacturer has provided this option. You need to go to Settings → Connections → WiFiNext, click on the name of the active network or the gear icon next to it. In the window that opens, find the line "Frequency" or "Band." The value will be listed there. 2400 MHz (which is 2.4 GHz) or 5000+ MHz (what is 5 GHz).
What to do if the frequency is not displayed?
If the standard Android menu doesn't show frequency information, it means the manufacturer has hidden this data. In this case, use third-party analyzer apps, such as WiFi Analyzer or Fing. They display detailed technical information about the current connection, including channel number and bandwidth.
An alternative method for advanced users is to use the command line via ADB, but this requires a PC connection. The easiest way is to install a free app from the Google Play store. These programs display not only the frequency but also the signal strength in dBm, which helps find the best location for the router.
- 📱 Go to WiFi settings and click on the active network to view properties.
- 📡 Look for the line "Frequency": 2400 MHz = 2.4 GHz, 5000+ MHz = 5 GHz.
- 📲 Use apps like WiFi Analyzer if your system doesn't have any details.
- ⚙️ Please pay attention to the channel number: 1-13 (2.4 GHz), 36-165 (5 GHz).
⚠️ Attention: On some Xiaomi and Huawei models, frequency information can only be displayed in the Engineering Menu mode (code
##4636##), access to which may be restricted by the operator.
How to find the GHz on iPhone and iPad (iOS)
Apple device owners are less fortunate when it comes to native diagnostics. Apple deliberately hides technical information about wireless connections in the standard iOS interface. You won't find a "Network Properties" button with frequency information in the standard Settings menu. However, there are proven indirect methods for determining the range.
The first method is to analyze the network name (SSID). If your router is configured correctly, networks often have different names, for example, HomeWiFi And HomeWiFi_5GIf you're connected to a network with a 5G or 5GHz prefix, you're using the high-speed band. If it's just the name, check the speed. If you're standing 10 meters from the router through one wall and the speed is above 300 Mbps, it's definitely 5 GHz.
The second method requires installing a free app. AirPort Utility From Apple itself. It's a router configuration utility, but it has a hidden scanner mode. To activate it, you need to:
- Install the application from the App Store.
- Go to iPhone settings (general), find the list of applications at the bottom and select AirPort Utility.
- Turn on the "WiFi Scanner" switch.
- Launch the application and click "Scan".
The list shows MAC addresses and channels. Channels 36, 40, 44, 48, and higher indicate the 5 GHz band. Channels 1-13 are 2.4 GHz. This is the only native way to obtain technically accurate information without jailbreaking.
WiFi diagnostics on Windows 10 and 11
Windows computers are the easiest to use for obtaining frequency information, and there's no need to download additional software. The system provides fairly detailed reports on the wireless adapter's status. This is especially convenient for laptops that are constantly moving between rooms.
The fastest way is via the command line. Click Win + R, enter cmd and press Enter. In the black window, enter the command netsh wlan show interfacesIn the list that appears, find the "Channel" line. If it shows a number from 1 to 14, you're on the 2.4 GHz band. If the number is greater than 30 (e.g., 36, 100, 149), you're connected to the 5 GHz band.
netsh wlan show interfacesA more visual method is available through the graphical interface. Right-click the WiFi icon in the system tray (near the clock) and select "Network & Internet Settings." Go to "Properties" for your active network. Scroll down to the "Properties" section. There you'll see a line titled "Frequency Band," which clearly states: 2.4 GHz or 5 GHz.
| Parameter | The meaning of 2.4 GHz | The meaning of 5 GHz |
|---|---|---|
| Channels | 1 – 14 | 36 – 165 |
| Max. speed (theoret.) | up to 600 Mbps | up to 6000+ Mbps |
| Penetration of walls | High | Low |
| Noise immunity | Low (many neighbors) | High |
You can also check your adapter's capabilities in Device Manager. Find your WiFi module, open its properties, and go to the "Advanced" tab. There you'll see the supported modes (802.11n, ac, ax). Standard availability 802.11ac or ax confirms 5 GHz support.
☑️ Check on Windows
Network analysis on macOS
Mac users can access detailed technical information through a hidden menu. The standard WiFi icon in the menu bar only shows signal strength, but if you hold down the key Option (Alt) and click on the icon, an extended menu will open.
In this menu, you'll see a line labeled "Channel." The logic is the same as in Windows: low channel numbers (1-13) indicate 2.4 GHz, while high channel numbers (36+) indicate 5 GHz. The current connection speed (Tx Rate) is also displayed. If the speed is consistently above 400 Mbps, you're most likely using the 5 GHz band.
For a more in-depth analysis, macOS offers the "Wireless Network Diagnostics" utility. You can find it in Spotlight (Cmd + Space) by typing "Diagnostics." From the "Window" menu, select "Scan." The program will display all available networks, their frequency, channel, and noise level. This is the best tool for finding available channels in an apartment building.
⚠️ Attention: Operating system interfaces may be updated. If you don't see the above items, check the Help section or use the terminal with the command
/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I.
Checking the settings in the router's web interface
The most reliable way to find out what frequency your network is operating on is to look inside your router. To do this, enter the device's IP address (usually 192.168.0.1 or 192.168.1.1) in the browser. The login and password are often indicated on a sticker on the bottom of the case.
After logging in, find the "Wireless" or "WiFi" section. There will be separate subsections for 2.4G and 5G. You'll be able to see whether they're enabled, what names (SSIDs) they're assigned, and what channels are selected. If the feature Smart Connect enabled, the router automatically distributes clients, and this menu can display statistics of connected devices by range.
The interface also displays a list of connected clients (Client List). Often, the frequency or communication standard (802.11ac/n) is listed next to the device name (e.g., iPhone-Ivan). This allows you to identify which device is "hanging" on a slow band and slowing down the overall network.
Common problems and their solutions
One of the most common issues is that the device stubbornly connects to 2.4 GHz, ignoring the faster 5 GHz, even when close to the router. This happens because the 2.4 GHz signal is always louder and more stable at a distance. The phone prefers speed stability unless priority is set.
Solution:
- 📶 Separate network names. Name the 5 GHz network, for example, MyWiFi_5G, and forcefully connect to it.
- 📉 Reduce 2.4GHz power. In your router settings, you can reduce the transmitter power at low frequencies so that devices can switch to higher frequencies more quickly.
- 🔄 Forget the network. On your phone, tap "Forget network" and reconnect while standing close to the router.
Another issue that sometimes occurs is that the laptop doesn't detect the 5 GHz network at all. This can be due to drivers or the age of the WiFi module. If the adapter only supports the standard 802.11n, he will not be physically able to connect to a network that operates exclusively in wireless mode. 802.11ac (Although most N/AC adapters are omnivorous). Updating drivers from the manufacturer's website often solves the network dropout problem.
Why is the speed low even on 5 GHz?
Speed depends not only on the frequency but also on the channel width. Make sure your router's 5 GHz channel width is set to 80 MHz or 160 MHz. If it's set to 20 MHz, you won't get high speeds.
Frequently Asked Questions (FAQ)
How do I know for sure if my laptop supports 5GHz?
Open the Device Manager in Windows and locate your wireless adapter. If the model name contains an abbreviation AC, AX or Dual Band, 5 GHz support is guaranteed. You can also enter the command netsh wlan show drivers in the command line and find the line "Supported radio module types".
Which is better for gaming: 2.4 or 5 GHz?
Definitely 5 GHzThis range provides lower ping (latency) and stability, as it's less susceptible to interference from microwaves and Bluetooth headsets. However, if you're far from your router and the 5 GHz signal is weak, it's best to switch to 2.4 GHz to avoid connection drops.
Why do I see the 5G network but there is no internet?
The "5G" prefix in a WiFi network name refers to the 5 GHz frequency, not the fifth-generation mobile network. If there's no internet, the problem could be with your router settings, unpaid ISP payments, or a DNS issue. Try rebooting your router.
Is it possible to increase the range of a 5GHz network?
Physical laws limit the range of high frequencies. It can only be increased by replacing the router's antennas with more powerful ones (if they are removable) or by installing an additional router in access point (repeater) mode closer to the intended use area.