Wireless connection speed directly depends on the generation of the equipment used, and knowing the exact connection standard is the first step to optimizing your home network. Many users encounter situations where their ISP offers a gigabit connection, but the actual speed barely reaches tens of megabits per second. This is often due to the router running an outdated protocol that is physically incapable of handling larger amounts of data.
Understanding the difference between 802.11n, 802.11ac and the newest 802.11ax (Wi-Fi 6) will allow you to avoid unnecessary expenses on new equipment or, conversely, make an informed decision about an upgrade. In this article, we'll cover all available protocol identification methods: from a simple inspection of the case to in-depth diagnostics using system utilities.
Visual identification and marking of the device
The fastest way to find out your router's specifications is to carefully examine its case and manufacturer's label. Electronics manufacturers almost always list key features of the wireless module on the front panel or on the bottom of the case, where the serial number is located. Look for logos. Wi-Fi 5, Wi-Fi 6 or frequency range designations such as 2.4 GHz And 5 GHz.
Presence of markings Dual Band or AC in the model name (for example, TP-Link Archer C7 AC1750) almost certainly indicates support for the 802.11ac standard. If the name only includes a number like N300 or N450, the device is likely limited to the 802.11n standard. However, external signs don't always tell the whole story, especially when it comes to reflashed or custom devices.
⚠️ Please note: The markings on the box may differ from the actual device firmware if the router has been reflashed with third-party software or restored after repair. Always double-check the data using software.
For a more accurate diagnosis, you can use the official documentation. Find the exact model on the sticker (usually marked as Model or Ver) and enter it into a search engine along with the word "specifications." The manufacturer's technical specifications contain comprehensive information about the supported IEEE standards.
Checking via the router's web interface
The most reliable method is to log into the router's control panel. To do this, you need to know the gateway IP address, which is usually set to 192.168.0.1 or 192.168.1.1Enter this address into your browser's address bar and log in using your username and password (by default, these are often located on the same sticker as the device model).
Once logged in, menu navigation may vary depending on the brand, but the information you're looking for is usually hidden within sections Wireless, Wi-Fi Settings or StatusYou need to find the field. Mode (Mode) or StandardThis is where the active protocol will be written, for example, 802.11 b/g/n/ac mixed.
☑️ Checking Wi-Fi settings
In modern interfaces from Keenetic, Asus or Mikrotik The information can be displayed on the main dashboard. Please note the channel width: values 20/40/80 MHz are typical for the AC standard, and 160 MHz — for AX. If you only see 20/40 MHz, the device is probably based on 802.11n.
Diagnostics using the Windows operating system
If you can't access the router, your computer's operating system will automatically report the current connection's characteristics. Windows has built-in diagnostic tools that display the negotiated speed and protocol. This is especially useful for understanding the speed your adapter is currently operating at.
For more information, open the command prompt. Press the key combination Win + R, enter cmd and press Enter. In the window that appears, enter the command:
netsh wlan show interfacesIn the command output, find the line Radio type (Radio Type) It will indicate the specific standard, for example, 802.11ac or 802.11ax. Also pay attention to the line Receive (transmit) speed — it shows the current receive and transmit speed in Mbps. Low values may indicate a poor signal or operation in the 2.4 GHz band.
⚠️ Note: The command line only shows the parameters of the active connection. If you are connected via cable, the command
netsh wlanwon't return any results. Switch to Wi-Fi to check.
An alternative method is to use the Device Manager. Right-click the Start button, select Device Manager, and expand the Network Adapters branch. Find your wireless adapter (often the name contains the words Wireless, Wi-Fi or 802.11). Right-click, select "Properties" and go to the "Advanced" tab. There you can find the parameter 802.11n Mode or Wireless Mode, which shows the supported standards.
Using mobile applications and third-party software
For smartphone owners, there are specialized utilities that perform in-depth analysis of the broadcast. The application WiFi Analyzer (for Android) or AirPort Utility (for iOS) allows you to not only view a list of networks but also examine each one in detail. This is a great way to check whether your router is broadcasting at 5 GHz, which is a requirement for the AC and AX standards.
On a PC, a powerful tool is a free utility WiFiInfoView from NirSoft. It scans all available networks and displays a table with details: channel, frequency, encryption type, and, most importantly, the 802.11 standard. The program is especially useful for comparing your router with your neighbors' to select the least congested channel.
Why is the speed in the program lower than stated?
Actual data transfer rates are always lower than the standard's theoretical maximum due to protocol overhead, interference, and distance to the router. For example, the 802.11n standard has a theoretical maximum of 300 Mbps, but actual speeds rarely exceed 150-180 Mbps.
Also worth mentioning is the cross-platform solution. AIDA64Under "Network" -> "Windows Network," you can find detailed information about your network adapter, including supported standards and current link speed. This is a professional tool that provides comprehensive technical information.
Comparison table of Wi-Fi standards
To help you navigate the numbers and abbreviations, we've prepared a summary table of key specifications. It will help you quickly compare your equipment's capabilities with modern requirements.
| Standard | Marketing name | Year of release | Max. speed (theoret.) | Ranges |
|---|---|---|---|---|
| 802.11n | Wi-Fi 4 | 2009 | 600 Mbps | 2.4 GHz, 5 GHz |
| 802.11ac | Wi-Fi 5 | 2014 | 6.9 Gbps | 5 GHz |
| 802.11ax | Wi-Fi 6 | 2019 | 9.6 Gbps | 2.4 GHz, 5 GHz |
| 802.11be | Wi-Fi 7 | 2026 | 46 Gbps | 2.4, 5, 6 GHz |
As the table shows, the transition from generation to generation provides a significant increase in performance. However, it's worth remembering that for high-speed operation both devices The router and client (e.g., a laptop) must support the same standard. If the router supports Wi-Fi 6 and the smartphone only supports Wi-Fi 4, the connection will be established using the older protocol.
Impact of the standard on real speed and stability
The difference between the standards isn't just in the maximum speed figures. New protocols, such as 802.11ac Wave 2 And 802.11ax, are implementing MU-MIMO and OFDMA technologies. These allow the router to effectively communicate with multiple devices simultaneously without creating data packet queues. In homes with many devices, this is critical to avoiding lag.
Older standards like 802.11g or earlier versions of 802.11n are highly susceptible to interference from microwave ovens, Bluetooth devices, and neighboring networks. Switching to 5 GHz (available in AC and AX) solves the problem of airborne noise, providing more stable ping, which is especially important for online gaming and video calls.
If you discover that your router only supports 802.11n and your ISP's data plan exceeds 100 Mbps, you won't be able to achieve full wireless speed. In this case, your only option is to replace the equipment or use a cable connection for desktop computers.
Frequently Asked Questions (FAQ)
Can a Wi-Fi 5 router work with Wi-Fi 4 devices?
Yes, Wi-Fi standards are fully backward compatible. A router supporting 802.11ac (Wi-Fi 5) will seamlessly connect to a device running 802.11n (Wi-Fi 4), but the connection will operate at the speed and protocol of the older device.
Why does the connection properties say 802.11n, even though the router is new?
Most likely, your computer or smartphone is connected to the 2.4 GHz band, which often operates in mixed compatibility mode. Try switching to the 5 GHz network (if configured separately) or checking your network adapter drivers.
Does the Wi-Fi standard affect signal coverage in an apartment?
Yes, it does. The 802.11n (2.4 GHz) signal penetrates walls better, but has lower speeds. The 802.11ac/ax (5 GHz) signal provides higher speeds but has poorer penetration through obstacles. Mesh systems are better for larger apartments.
How do I know if my laptop supports Wi-Fi 6?
Check your network adapter model in Device Manager. If the name includes the abbreviation AX (e.g., Intel Wi-Fi 6 AX200), it's supported. You can also use the command netsh wlan show drivers in the command line and find the line "Supported Radio Types".