In the age of ubiquitous digital connectivity, internet speed and stability are becoming critical factors for work and entertainment. Many users encounter situations where the speed advertised by their provider isn't being achieved on their devices, and the first suspect is the router. Often, the root cause of the problem lies in an outdated router. wireless communication standard, which is physically incapable of passing a gigabit data stream through itself.
Understanding the protocol your equipment uses allows you not only to diagnose bottlenecks but also to intelligently plan your home network upgrade. In this article, we'll cover in detail all the methods for accurately determining your router's Wi-Fi version, using both software methods and visual inspection.
Don't rely solely on external similarities between models, as manufacturers often release revisions of the same case with completely different internals. To obtain reliable information, you should consult the technical documentation or the device's interface.
Visual inspection of the body and technical documentation
The fastest way to get initial information is to carefully examine the bottom panel of the router. Electronics manufacturers are required to place information labels there containing the serial number, MAC address, and, most importantly for us, the supported standards. Look for markings like 802.11ac, Wi-Fi 5 or AX, which immediately give an understanding of the class of the device.
If the sticker has worn off or the information is presented as a model code, refer to the official documentation included with the device. The User Manual always includes a section with technical specifications detailing the wireless module's capabilities. This section will provide information on frequency ranges and the maximum theoretical speed.
It's also worth paying attention to the device's antennas. While the number of antennas doesn't always directly correlate with the standard, the presence of removable antennas with a connector often indicates more advanced models that support MIMO technology. However, relying solely on appearance is dangerous, as modern compact routers can be more powerful than their bulkier counterparts of the past.
⚠️ Attention: The markings on the box may refer only to the wired port (e.g., Gigabit Ethernet), not the wireless module. Always look for the specification specifically for WLAN or Wireless.
For precise identification by device model, it's best to use an online search. Enter the full model code in the search bar and add the word "specifications." The manufacturer's official website is the most reliable source for downloading the complete datasheet for the equipment.
Checking the standard via the router's web interface
The most accurate and up-to-date information about the current network status and supported protocols is provided by the router's administrative panel. To access it, open a browser and enter the gateway IP address, which is usually set to 192.168.0.1 or 192.168.1.1The address may also be indicated on the same sticker as the device model.
After logging in (the login and password are usually admin/admin, unless you've changed them), you should go to the section responsible for the wireless network. Depending on the firmware, this section may be called Wireless, Wi-Fi, Wireless mode or WLANThis is where the key settings for security protocols and communication standards are contained.
Inside the wireless settings menu, find the "Mode" option. The drop-down list will display all the standards your router supports. If you see 802.11ax or Wi-Fi 6, then your equipment belongs to the most modern generation. The presence of only 802.11n indicates that the router is obsolete.
It's important to note that dual-band routers may have settings split into two different sections: 2.4 GHz and 5 GHz. The standards may differ between them, although modern devices typically synchronize their capabilities. Check both bands for the full picture.
☑️ Check in the web interface
Using the Command Prompt in Windows
Windows users have a built-in tool that provides detailed information about their wireless adapter and the access point it's connected to. This method doesn't require accessing the router's settings and provides technically accurate data about the current connection.
Open the command prompt by typing cmd in the Start menu search, and run it as administrator. In the window that opens, enter the command netsh wlan show interfacesThis command will output a detailed report about the status of the wireless interface.
netsh wlan show interfacesIn the resulting list, find the line "Radio type" or "Protocol." It will indicate the specific standard, for example, 802.11ac or 802.11axAlso, pay attention to the "Receive Speed (Mbps)" line, which will show the actual link speed at the moment.
This method shows the standard your device is currently running. If your router supports Wi-Fi 6, but your laptop has an older adapter, the command line will show a lower standard. Therefore, to test the router's capabilities, it's best to use this method with the most up-to-date device.
⚠️ Attention: Command line interfaces may vary slightly in different Windows locales. If the command doesn't work, try entering it in English:
netsh wlan show interfaces.
Analysis via mobile apps and utilities
Modern smartphones have powerful tools for network analysis, and the built-in OS functionality is often sufficient. On Android devices, you can use a hidden engineering test menu or third-party scanner apps that display detailed Wi-Fi parameters.
One of the most popular and informative applications is Wi-Fi Analyzer or WiFi Man from Ubiquiti. After installing and running the scan, click on your network name. The detailed description will show the channel, channel width, and, most importantly, the standard. security protocol and Wi-Fi versions.
iOS users can also access technical information, although the system is more closed. This can be done through the Analytics app (requires installation via TestFlight or a developer profile) or through third-party utilities such as AirPort Utility (with the scanner enabled in the settings) you can see the MAC address and RSSI, and sometimes the protocol type.
Why is the speed in the app lower than stated?
The speed displayed in apps shows the actual throughput at the given moment, which depends on interference, distance from the router, and the number of connected devices. The theoretical speed of the standard is the maximum speed under ideal conditions, unattainable in a typical apartment due to walls and interference.
Using specialized software on a PC, such as AIDA64 or HWiNFO, also allows you to get a detailed report on your network adapter. In the "Network" -> "Wi-Fi" section, you can see the supported standards and the current connection status.
Wi-Fi standards and generations correspondence table
To make technical specifications easier to navigate, manufacturers and the Wi-Fi Alliance have introduced simplified generation numbers. Complex technical designations are now replaced by simple numbers, making it easier to select equipment in stores.
Below is a table to help you match the technical name of a standard with its commercial name and year of publication. This is key information for understanding how current your equipment is.
| Wi-Fi generation | Technical standard | Year of implementation | Max. speed (theoret.) |
|---|---|---|---|
| Wi-Fi 4 | 802.11n | 2009 | 600 Mbps |
| Wi-Fi 5 | 802.11ac | 2014 | 6.9 Gbps |
| Wi-Fi 6 | 802.11ax | 2019 | 9.6 Gbps |
| Wi-Fi 6E | 802.11ax (Extended) | 2020 | 9.6 Gbps |
| Wi-Fi 7 | 802.11be | 2026 | 46 Gbps |
Please note that actual speeds are always lower than theoretical ones due to protocol overhead, interference, and client device limitations. However, the order of magnitude of the numbers provides a clear understanding of performance: upgrading from Wi-Fi 4 to Wi-Fi 5 delivers a dramatic increase in speed, especially in the 5 GHz band.
Frequently asked questions and problems in defining the standard
Users often encounter a situation where a router is advertised as dual-band, but devices only see one network. This may be due to the "Smart Connect" feature being enabled in the router settings, which combines the 2.4 and 5 GHz networks under a single name. In this case, the only way to determine which standard you're using is through the connection properties on the client.
Another common issue is drivers. If your computer has an outdated Wi-Fi adapter driver installed, it may not correctly detect new router standards, forcing the connection to switch to a slower, more compatible protocol. Always keep your network card drivers updated.
Regional restrictions are also worth considering. Some routers imported from other countries may have signal strength or available channel limitations, which limit their capabilities, even if the hardware supports advanced standards.
⚠️ Attention: Technical specifications and software interfaces may change with the release of new firmware versions. If you can't find the required parameter, check for updates for your router on the manufacturer's website.
Does the Wi-Fi standard affect the speed of a wired connection?
No, the Wi-Fi standard (802.11 a/b/g/n/ac/ax) applies exclusively to wireless data transmission. The speed of a wired connection (via Ethernet cable) depends on the cable class (Cat5e, Cat6) and the speed of the LAN/WAN ports on the router (Fast Ethernet 100 Mbps or Gigabit Ethernet 1000 Mbps). However, if the router is old and underpowered, it may not be able to handle high-speed routing even over a cable due to a weak processor.
Is it possible to update the Wi-Fi standard via firmware?
No, that's not possible. The Wi-Fi standard is determined by the hardware—the radio module inside the router. A software update (firmware) can fix bugs, add security features, or improve stability, but it won't convert a physical Wi-Fi 4 device to Wi-Fi 6. Changing the standard requires a hardware upgrade.
Why can't my phone see the 5GHz network?
Most likely, your phone or tablet is an older generation device that only supports the 2.4 GHz band. Alternatively, your router's 5 GHz network is set to stealth mode (hidden SSID), or a channel is selected that isn't supported by your region or device.