Page loading speeds, stable video calls, and smooth gaming directly depend on the wireless standard used in your network. Many users confuse frequency and protocol, wondering why an AC1200 router isn't delivering the expected speeds on an older laptop. Understanding the differences between 802.11n, 802.11ac and new 802.11ax (Wi-Fi 6) is critical to properly setting up your home internet.
In this article, we'll cover all available methods for diagnosing your connection, from standard operating system tools to specialized software. You'll learn how to determine not only your current link speed, but also your channel width and security mode, which will help you eliminate bottlenecks in your hardware configuration.
Before diving into complex tools, it's worth understanding the basic terms you'll encounter during analysis. A connection type is a combination of the physical data transmission standard and the logical encryption protocol. It's this combination that determines the actual throughput of your channel.
Main Wi-Fi standards and their characteristics
Modern wireless networks are built on the IEEE 802.11 family of standards, often referred to by the marketing name Wi-Fi Alliance. The most widely used remains 802.11n (Wi-Fi 4), which operates in the 2.4 and 5 GHz bands, provides theoretical speeds of up to 600 Mbps, but in practice rarely exceeds 150-200 Mbps due to interference and limitations of client devices.
A more modern standard is 802.11ac (Wi-Fi 5), which operates exclusively in the 5 GHz band. This connection type enables gigabit speeds over the air. However, for it to function properly, both the router and the receiving device require MU-MIMO support.
The latest generation at the moment is 802.11ax (Wi-Fi 6 and 6E). This standard uses new modulation methods (1024-QAM), allowing for more data to be transmitted per cycle. If you're wondering how to find out the WiFi type on a modern smartphone, you'll likely see these designations in the connection specifications.
- 📡 Wi-Fi 4 (802.11n) — a basic standard operating at 2.4 and 5 GHz frequencies, with a maximum speed of up to 600 Mbps.
- 🚀 Wi-Fi 5 (802.11ac) — works only in 5 GHz, supports wide channels up to 160 MHz, speed up to 6.9 Gbps.
- ⚡ Wi-Fi 6 (802.11ax) - improves efficiency in densely populated areas, reduces latency and increases network capacity.
⚠️ Attention: Even if your router supports the Wi-Fi 6 standard, your device (laptop or phone) must also have a corresponding module. Otherwise, the connection will be established using a later compatible protocol, such as 802.11ac.
It's important to understand that the speed displayed in the operating system interface is the Link Speed, not the actual internet speed. Actual throughput is typically 50-60% of the advertised connection speed due to protocol overhead.
Checking the connection type on Windows 10 and 11
Windows operating systems provide ample information about your current network connection, although they hide some technical details deep within menus. The fastest way to find out the underlying protocol is to use the network settings interface. Open the Start menu, select Settings (the gear icon), and go to Network & Internet.
In the window that opens, select the "Wi-Fi" tab and click on the name of your active network (or the "Properties" button). In the menu that opens, scroll down to the "Properties" section. Here you will find the "Protocol" line, which will indicate the standard, for example, Wi-Fi 5 (802.11ac) or Wi-Fi 4 (802.11n). The channel frequency and reception/transmission speed are also displayed there.
For more in-depth diagnostics, you can use the command line. Click Win + R, enter cmd and press Enter. In the black window, enter the command netsh wlan show interfacesThis command will print a detailed list of all parameters of the active wireless interface.
netsh wlan show interfacesIn the command output, find the line "Radio type." It will indicate the exact standard, for example, 802.11ac or 802.11axAlso pay attention to the "Channel width" line, which will show whether a narrow 20 MHz channel or a wide 80/160 MHz channel is used.
☑️ Wi-Fi Diagnostics in Windows
If the line "Radio Type" indicates 802.11nEven though your router supports 5 GHz, it means you're connected to a dual-band network at 2.4 GHz, or your device isn't seeing the 5 GHz signal. In this case, check your router settings or the distance to the access point.
Wi-Fi network analysis on Android and iOS
Android and iOS mobile operating systems also provide connection information, but the functionality varies greatly depending on the OS version and smartphone model. On iPhones with iOS 14 and later, the information is more deeply hidden than on Android. Open "Settings" → "Wi-Fi" and tap the blue information icon (i) next to the network name.
Scroll down to the "Protocol" section. This will indicate which standard is being used: Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac) or older versions. If you don't see this field, it means your device is connected via an older standard or your iOS version doesn't support detailed display.
On Android, the situation is more varied due to manufacturer skins. On stock Android (Pixel, Motorola), the path usually looks like this: "Settings" → "Network & Internet" → "Wi-Fi" → click the gear next to the network. The "Frequency" or "Connection Speed" section often displays the standard. On smartphones Samsung or Xiaomi This information may be hidden in the "More" menu or displayed only in the engineering menu.
- 📱 iOS: Settings → Wi-Fi → (i) → Protocol.
- 🤖 Android (Stock): Settings → Network → Wi-Fi → Gear → Speed/Frequency.
- ⚙️ Android (OEM): A third party application may be required to accurately detect the 802.11 standard.
⚠️ Attention: On many Android smartphones, the standard interface only displays the connection speed (e.g., 866 Mbps), but doesn't explicitly indicate the 802.11ac standard. Use the speed as a guide: if it's higher than 433 Mbps, it's definitely not 802.11n.
To obtain complete technical information on Android, you often have to resort to third-party utilities, as manufacturers hide driver implementation details. This is especially true for determining channel bandwidth, which directly impacts speed.
Using specialized software for PC
Windows' built-in tools are sometimes insufficient for professional diagnostics, especially when you need to see the signal strength of neighboring networks and the level of noise in the air. Powerful utilities exist for these purposes, such as inSSIDer, Acrylic Wi-Fi Home or WiFi AnalyzerThese programs can scan the air and display detailed information about each available AP (Access Point).
Application Acrylic Wi-Fi Home (free version) allows you to see not only the SSID, but also the security standards (WPA2-Personal, WPA3), channel, channel width, and maximum supported speed. The "Standard" column will clearly indicate: 11n, 11ac or 11ax.
Another powerful tool is WiFi Analyzer (available in the Microsoft Store). It visualizes the waves and shows how congested your channel is with neighbors. This is critical for the 2.4 GHz band, which has only three non-overlapping channels. The program will also show the maximum connection speed (Max Rate) the current link can provide.
| Program | Platform | Key function | Price |
|---|---|---|---|
| Acrylic Wi-Fi Home | Windows | Detailed list of standards and channel widths | Free / Pro |
| WiFi Analyzer | Windows / Android | Graphical analysis of channel occupancy | Free |
| inSSIDer | Windows / macOS | Professional security and coverage analysis | Paid |
| NetSpot | Windows / macOS | Building heat maps of coverage | Free / Paid |
Using this software helps you understand why your speed drops at certain times of day. If you see that all your neighbors are on Channel 6, but you have "Auto," your router may have chosen it, creating a mess of interference.
Why is the speed in the program lower than in the provider's contract?
The speed displayed in programs shows the local connection speed (Link Speed) between your adapter and router. It doesn't take into account ISP tariff restrictions, the load on the server you're downloading to, or the loss caused by passing through multiple internet nodes. The actual download speed will always be lower than the link speed.
Diagnostics via the router's web interface
The most reliable source of information about how the router sees connected devices is its own admin panel. To get there, enter the gateway IP address (usually 192.168.0.1 or 192.168.1.1) and log in. Your login and password are often found on a sticker on the bottom of your device.
Interfaces from different manufacturers (TP-Link, Asus, Keenetic, MikroTik) differ, but the logic is the same. Look for the "Client List," "Wireless Status," or "Traffic Monitor" sections. These typically show the IP address, MAC address, connection time, and, most importantly, the connection standard and frequency for each connected device.
For example, in routers Keenetic In the "Client List" section there is a "Interface" column where it says Wi-Fi 5 GHz 802.11ac. IN Asus This information is often hidden in the network's graphical display or in a tooltip when hovering over a client device. This allows you to understand the frequency a particular device operates on.
If you see that a modern smartphone is connected according to the standard 802.11n (2.4 GHz), even though the router is dual-band, it's possible that the "Smart Connect" feature (which combines the 2.4 and 5 GHz bands into a single network with a single name) is enabled in the wireless network settings. In this case, the router itself decides where to connect the client and sometimes makes a mistake, choosing the longer-range but slower band.
- 🔍 Search section: Look in the menu for "Network Map", "Clients" or "Wireless".
- 📶 Signal analysisPay attention to the signal strength (RSSI) for each client. If it's below -70 dBm, your speed will drop.
- ⚙️ Separation of networks: For precise control, it is better to separate the 2.4 and 5 GHz networks by giving them different names (SSIDs), for example,
Home_24AndHome_5G.
⚠️ Attention: Router interfaces are constantly being updated. The menu layout may differ from what's described. If you can't find the item you need, consult the official manual for your model or look for screenshots of the interface for your firmware version.
The influence of frequency and channel width on speed
Understanding the type of WiFi is impossible without taking into account the frequency range. Range 2.4 GHz It has good wall penetration, but is extremely congested. Not only Wi-Fi works here, but also Bluetooth, microwaves, and baby monitors. The maximum real-world speed rarely exceeds 40-50 Mbps.
Range 5 GHz offers more channels and less interference, but is less effective at penetrating obstacles. This is the frequency at which the standards operate. 802.11ac And 802.11axThe key parameter here is the channel width. The standard width is 20 MHz, but for higher speeds, 40, 80, and even 160 MHz are used.
The wider the channel, the higher the speed, but the higher the risk of interference from neighboring networks. In apartment buildings, setting the channel width to 160 MHz often leads to instability, as the entire range overlaps. The optimal choice for most apartments is a channel width of 80 MHz.
Also worth mentioning is the new range 6 GHz, available in the Wi-Fi 6E standard. It offers incredible speeds and is virtually interference-free, but requires support from both devices and is currently subject to regulatory restrictions in some countries.
What is MIMO and how does it affect WiFi type?
MIMO (Multiple Input Multiple Output) is a technology that uses multiple antennas for simultaneous data transmission. The number of antennas (e.g., 2x2 or 4x4) multiplies the channel speed. If the router is 4x4 and the laptop is 1x1, the connection will operate at the speed of the weakest link.
Frequently Asked Questions (FAQ)
How do I know if my laptop supports 5GHz Wi-Fi?
Open the command prompt (cmd) and enter the command netsh wlan show driversFind the line "Supported radio types." If there is a listing there 802.11a, 802.11ac or 802.11ax, then there is 5 GHz support. Unless 802.11b/g/n, most likely, the module is single-channel (2.4 GHz), although some n versions can also work at 5 GHz.
Why does my 5GHz Wi-Fi speed drop when I move to another room?
The 5 GHz signal has a shorter wavelength than 2.4 GHz, so it has poorer resistance to obstructions and fades faster in walls, especially concrete with rebar. To solve this, use a mesh system or set up roaming between access points so the device switches to the closest one.
Does WPA3 security protocol affect speed?
In theory, WPA3 requires more computing resources for encryption, which may slightly reduce processor performance on very old routers. However, on modern equipment (Wi-Fi 5 and newer), the speed difference is negligible, and data security is significantly improved.
Can an Ethernet cable limit Wi-Fi speed?
No, the cable is not a limiting factor, but if you measure the internet speed via Wi-Fi, and the router is connected to the provider with a Category 5 cable (4 wires), the speed will be limited to 100 Mbps, regardless of how powerful your Wi-Fi 6 is.