Wireless connection speed and the stability of your gadgets directly depend on the frequency your equipment operates on. Many users don't even realize that their router It can broadcast on two bands simultaneously, but devices connect to the slower one. Understanding how to find out the hertz rate of a Wi-Fi router is the first step to properly optimizing your home network.
In today's densely populated multi-apartment environments, the airwaves are oversaturated with signals, and the old 2.4 GHz band often becomes a bottleneck. 5 GHz band Offers much higher data transfer speeds, but has a shorter range. That's why it's important to understand your hardware's capabilities to properly prioritize your connection.
There are several proven methods for determining the operating frequency, ranging from examining the manufacturer's sticker to in-depth analysis via the command line. We'll cover each method so you can choose the most suitable one for your situation. It's important not to confuse the router's processor frequency with the radio frequency, as we're specifically interested in the radio frequency.
Analysis of technical documentation and housing markings
The fastest and most reliable way to obtain initial information is a physical inspection of the device. Network equipment manufacturers are required to list key specifications on the bottom panel of the device. Look for a barcode label, which typically lists the model, serial number, and wireless standards. If you see this marking, 802.11n, then most likely the device only works at 2.4 GHz, although there are dual-band models with this standard.
More modern standards such as 802.11ac (Wi-Fi 5) and 802.11ax (Wi-Fi 6) almost always implies support for the 5 GHz frequency. The label may explicitly state "Dual Band" or "2.4G/5G." This means the router can distribute internet on both frequencies simultaneously. However, support does not guarantee that the feature is enabled by default.
β οΈ Attention: Don't rely solely on the antenna's appearance. The number and size of antennas are not an accurate indicator of the supported frequency. A single antenna can operate at both 2.4 and 5 GHz, depending on its internal circuitry.
It's also worth paying attention to the device model. Knowing the exact name, for example, TP-Link Archer C6 or ASUS RT-AC51U, you can easily find the specifications online. The model name often contains a clue: the letters "AC" typically indicate 5 GHz support, while models marked "N" are usually limited to 2.4 GHz. This is especially true for budget-friendly devices.
Checking via the administrator web interface
The most accurate information about the current status of the radio modules is provided by the router control panel. To access it, open a browser and enter the device's IP address, usually 192.168.0.1 or 192.168.1.1After entering your login and password (often admin/admin), you'll be taken to the settings menu. We're interested in the section that may be called "Wireless," "Wi-Fi," "Wireless Network," or "WLAN."
Within this section, there are often subsections for each band. If you only see one tab, "Wireless 2.4GHz," then the second band is either missing in hardware or disabled. In dual-band routers, the settings are separated: SSID (network name) and channels for 2.4 GHz and 5 GHz separately. This is where you can force broadcasting on or off at a specific frequency.
βοΈ Diagnostics in the web interface
Interfaces from different manufacturers vary greatly. Keenetic This could be a separate page called βMy Networks and Wi-Fiβ, MikroTik β the "Wireless" section in the left menu. In some cases, especially with older firmware versions, 5 GHz support may be hidden in the advanced settings or require switching the region. If you don't see any explicit indication of 5 GHz, your router is likely single-band.
What should I do if the web interface doesn't open?
If your browser says "Unable to access the site," check whether your computer or phone is connected to the router's network via cable or Wi-Fi. Also, make sure your network adapter is set to obtain an IP address automatically (DHCP). Clearing your browser's cache or using incognito mode can sometimes help.
Using mobile applications and smartphones
Modern smartphones are an excellent tool for diagnosing Wi-Fi networks. Unlike laptops, mobile devices are always at hand and are equipped with sensitive communication modules. Go to the Wi-Fi settings on your Android or iPhone and find the network you're connected to. Tapping the network name or the gear icon often displays detailed technical information.
Please pay attention to the channel frequency. If indicated 2412 MHz, 2437 MHz or any range from 2400 to 2500 MHz, you are on a 2.4 GHz network. If the frequency starts with 5180 MHz, 5200 MHz and higher (up to 5900 MHz), your device is using the high-speed 5 GHz band. This is the easiest way to understand how many hertz your router is currently using.
For more in-depth analysis, specialized applications can be used, such as WiFi Analyzer or Fritz!App WLANThey plot channel load charts and clearly indicate the frequency of each available signal. In the list of networks, you'll see a distinction: some will be labeled as 2.4G, others as 5G. This allows you to visually assess whether your router is broadcasting on both frequencies.
It's worth noting that some smartphones only display connection speed in normal mode (e.g., 866 Mbps), which indirectly indicates a 5 GHz connection, as such speeds are physically impossible at 2.4 GHz. However, relying solely on speed isn't recommended, as it depends on both the channel width and the number of antennas. Frequency is a more reliable indicator.
Diagnostics using the Windows operating system
PC users can get comprehensive connection information without installing additional software. Windows 10 and 11 operating systems have built-in diagnostic tools. The easiest way is through the Network and Sharing Center. Right-click the Wi-Fi icon in the system tray, select "Open network and Internet settings," then "Change adapter settings."
In the window that opens, double-click your wireless connection icon. The "Details" button will appear in the status bar. The "Frequency" line will display the value in MHz. An alternative and faster method is to use the command line. Open the terminal (cmd) and enter the command:
netsh wlan show interfacesIn the command output, look for the "Channel" or "Frequency" line. If it shows a value around 2400-2500, it's 2.4 GHz. Values ββabove 5000 correspond to 5 GHz. This report will also indicate the radio type, where 802.11ac or 802.11ax guaranteed to operate in the 5 GHz band, while 802.11n can be at any frequency.
β οΈ Attention: If the "Radio Type" field in the command line says 802.11n, but the connection speed is high, that doesn't guarantee 5 GHz. Some advanced routers can achieve up to 600 Mbps on 2.4 GHz using 40 MHz technology and four antennas, although this is rare in real-world conditions.
Range characteristics comparison table
To fully understand the differences and why knowing your router's frequency is important, we'll provide a comparison table. It will help you identify the frequency range based on indirect indicators, such as speed and wall penetration.
| Characteristic | 2.4 GHz band | 5 GHz band |
|---|---|---|
| Maximum speed (theoretical) | up to 600 Mbps | up to 11 Gbps (Wi-Fi 6) |
| Penetration of walls | High | Low |
| Airtime congestion | Very high | Low |
| Range | Up to 50-70 meters | Up to 30-40 meters |
| Supported devices | All (including old ones) | Only modern (5G ready) |
From the table it is clear that 2.4 GHz Better suited for smart home devices that require a stable connection over a distance but don't require high speed (light bulbs, sensors). 5 GHz Designed for heavy traffic: 4K video, online gaming, video calls. If your router supports both bands, it's optimal to distribute devices between them.
Specifics of dual-band routers and Smart Connect
Many modern routers are equipped with a function Smart Connect (or similar). In this mode, the router broadcasts a single network name (SSID) for both bands. The device itself decides which frequency is best to connect to. This is convenient for the user, but makes it difficult to check how many hertz the router is currently using for a specific device.
For accurate diagnosis in such cases, it is recommended to temporarily disable the Smart Connect function and distribute two networks with different names, for example, MyWiFi And MyWiFi_5GBy connecting to the second one, you're guaranteed to use 5 GHz. If this isn't possible, you'll have to rely on the connection properties in the OS, as described above.
It's important to understand that even if your router is dual-band, older devices (10-year-old laptops, early smartphones) physically won't be able to connect to a 5 GHz network. Their network cards simply aren't designed to operate at these frequencies. Therefore, having these devices in your home often forces you to keep the older 2.4 GHz band active as well.
β οΈ Attention: Router interfaces are constantly being updated. Switch locations and function names may vary depending on the firmware version. If you don't see the option described, check the official manual for your specific model on the manufacturer's website.
Frequently Asked Questions (FAQ)
Can a 2.4 GHz router operate at 5 GHz after a firmware update?
No, that's impossible. The frequency range is determined by the device's hardwareβthe radio module and antennas. No software update will force the hardware to operate at frequencies it's not designed for. If the router is single-band, adding 5 GHz is not possible.
Why does my phone see the 5G network but won't connect to it?
This could be due to several reasons: a weak signal (5 GHz is less effective at penetrating walls), incompatible encryption standards or drivers, or channel congestion. Try moving closer to the router or checking the security settings in the web interface.
Does the number of antennas affect 5GHz support?
Not directly. The number of antennas affects speed and stability (MIMO), but does not determine the frequency. There are routers with one antenna for 5 GHz and four for 2.4 GHz. The key factor is the Wi-Fi standard (ac/ax) and the declared support for Dual Band.
How do I find out the hertz rate of my Wi-Fi router if I don't have access to the settings?
Use your smartphone. Go to the properties of the connected Wi-Fi network. The frequency is always listed there in MHz. 2400-2500 MHz is 2.4 GHz, and values ββabove 5000 MHz are 5 GHz. This works even without the router's administrator password.
Should I disable 2.4GHz if all my devices support 5GHz?
Yes, this is a good practice. Disabling 2.4 GHz will free up airtime for your neighbors and prevent older or guest devices from accidentally connecting to a slow network. However, make sure all your smart devices (vacuum cleaners, power outlets) actually operate on 5 GHz, which is rare.