How to Find Out What Protocol Your Wi-Fi Uses: A Complete Guide

Have you ever wondered why your Wi-Fi is sometimes slow, sometimes just barely? Or why your new smartphone connects to the internet faster than your old laptop? The reason often lies in Wi-Fi protocol — a set of rules by which devices exchange data. It determines not only the speed but also the stability of the connection, the range, and even the power consumption of the devices.

Modern routers support several standards simultaneously - from outdated 802.11b (maximum 11 Mbps) to the latest Wi-Fi 6E (802.11ax) (up to 9.6 Gbps). But how do you know which protocol is used in your network? right nowAfter all, a router can broadcast a network in mixed mode, and devices can connect using different standards depending on their capabilities. In this article, we'll cover all the testing methods: from built-in operating system tools to specialized applications.

1. What is Wi-Fi protocol and why is it important?

Wi-Fi protocol (or standard IEEE 802.11) is the "language" used by the router and connected devices to communicate. Each version of the protocol is different:

• 🔹 Data transfer rate: from 1 Mbit/s 802.11-1997 up to 9.6 Gbps Wi-Fi 6E.
• 🔹 Frequency range: 2.4GHz (congested, but long-range), 5GHz (fast, but less stable at range), 6GHz (newest, almost free).
• 🔹 Technologies: MU-MIMO (multiple-user modem), OFDMA (efficient channel distribution), WPA3 (advanced security).

Why is this critical for the user?

• 📶 Range of action: Old protocols (802.11b/g) pass through walls better, but slower. New (802.11ac/ax) require direct line of sight.
• 🔋 Energy consumption: Wi-Fi 6 Optimized for batteries - your smartphone will discharge more slowly.
• 🎮 Latency (ping): Important for online gaming and video calls 802.11ac or newer - they reduce lags.

⚠️ Attention: If your router broadcasts the network in mode 802.11b/g/n, and the smartphone supports Wi-Fi 6 (802.11ax), the connection will still be on the slowest common standard - 802.11nThis is called the "bottleneck effect."

Now let's move on to practice. Let's start with the simplest thing—testing on a connected device.

2. How to find out the Wi-Fi protocol on Windows 10/11

Microsoft operating systems have built-in network diagnostic tools. They don't always show the protocol directly, but they can be used to identify it.

Method 1: Via Network Settings

The fastest method:

1. Click Win + I, select Network and Internet → Wi-Fi.
2. Click on the name of your network, then - Properties.
3. Scroll to the block Properties and find the line Protocol.

If it is not there, proceed to the next method.

Method 2: Via the command line

Open Command line (Win + R → cmd) and enter:

netsh wlan show interfaces

In the results, find the following lines:

• Radio type — will show the range (2.4 GHz or 5 GHz).
• Transfer speed — maximum connection speed (for example, 866 Mbps speaks about 802.11ac).

Compare the speed with the standards table:

⚠️ Attention: If you see speed in the command results 72 Mbps, this does not mean that your Wi-Fi is working on 802.11gModern devices often limit speed due to interference or router settings. To accurately determine the protocol, use method 3.

Method 3: Via Device Manager

This method will show which protocol supports your Wi-Fi adapter (but not necessarily what you are currently using):

1. Click Win + X, select device Manager.
2. Expand the branch Network adapters.
3. Find your Wi-Fi module (for example, Intel Wi-Fi 6 AX200), right-click → Properties → Advanced.
4. In the list of properties, find Wireless mode or Wireless Mode.

Here it may be indicated, for example, 802.11a/b/g/n/ac - this means that the adapter supports all these standards, but the specific connection protocol depends on the router.

3. Defining the protocol on macOS

On Mac, the process is simpler than on Windows, thanks to the utility Wireless Diagnostics.

Method 1: Via System Information

1. Hold Option (⌥) and click on the Wi-Fi icon in the menu bar.
2. Select Open Wi-Fi diagnostics.
3. In the utility menu, go to Window → Scan (or Window → Scan).
4. Find your network in the list and look at the column PHY MODE.

The following values ​​may be present here:

• 802.11a - 5 GHz, up to 54 Mbit/s.
• 802.11n - 2.4/5 GHz, up to 600 Mbit/s.
• 802.11ac — 5 GHz, up to 3.5 Gbps.
• 802.11ax — Wi-Fi 6, up to 9.6 Gbps.

Method 2: Via Terminal

Open Terminal (Applications → Utilities → Terminal) and enter:

/System/Library/PrivateFrameworks/Apple80211.Framework/Versions/Current/Resources/airport -I

Find the line in the results PHY Mode. For example, 802.11ac means use Wi-Fi 5.

⚠️ Attention: On MacBooks with chips Apple Silicon (M1/M2) team airport may not work. In this case, use only the first method.

4. Checking the protocol on Android and iOS

Mobile devices usually don't show the Wi-Fi protocol in the settings, but there are workarounds.

Android: Network Analysis Apps

Android's default tools don't display the protocol, so you'll have to use third-party utilities:

• 📱 WiFi Analyzer (from farproc) - shows the channel, width and network standard in the section AP List.
• 📊 NetSpot — scans networks and detects their protocols (premium version required).
• 🔍 WiFi SweetSpots — displays PHY Type (For example, 802.11ac).

After installation:

1. Open the app and wait for the network scan.
2. Find your network in the list.
3. Look at the column Standard or Protocol.

iOS: Limitations and Workarounds

Apple strictly limits access to system information, so there are no direct ways to find out the Wi-Fi protocol on an iPhone or iPad. However, you can:

• 🔄 Indirect method: View the maximum connection speed in Settings → Wi-Fi → (i) next to the network. Speed 866 Mbps points to 802.11ac.
• 📱 AirPort Utility app (hidden function):

1. Download AirPort Utility from the App Store.
2. Turn on the mode Wi-Fi Scanner (hold your finger on the screen in the upper right corner → Wi-Fi Scan).
3. Find your network and look at the column Security (security) and Channel (channel). Combination WPA3 + channel 36-165 at high speed usually means 802.11ac/ax.

5. How to check the protocol on a router

The most reliable way is to check your router settings. There you'll see not only the current protocol but also all supported standards.

Step 1: Login to the Admin Panel

Open your browser and enter your router's IP address. This is usually:

• 192.168.0.1 (For TP-Link, D-Link)
• 192.168.1.1 (For ASUS, Zyxel)
• 192.168.8.1 (For Huawei)

The default login and password are usually admin/admin or indicated on the router sticker.

Step 2: Find your wireless network settings

Router interfaces vary, but look for the following sections:

• 📡 Wireless Settings / Wi-Fi settings
• 🔧 Advanced Settings / Additional settings
• 🔄 Wireless Mode / Wireless network mode

Examples of what you might see:

• 802.11b/g/n mixed - mixed mode for 2.4 GHz.
• 802.11a/n/ac — mixed mode for 5 GHz.
• 802.11ax (Wi-Fi 6) — the latest standard.

Step 3: Split by ranges

Many routers allow you to configure protocols separately for 2.4 GHz And 5 GHz:

• For 2.4 GHz usually available 802.11b/g/n.
• For 5 GHz — 802.11a/n/ac/ax.

If it is specified in the settings Auto, the router itself selects the optimal protocol depending on the device.

⚠️ Attention: Some routers (eg. Keenetic) hide advanced Wi-Fi settings behind a button Show settings for expertsWithout this, you will not see the current protocol!

What should I do if there is no protocol information in my router settings?

If your router does not display the protocol in the web interface, try:

1. Update the firmware (this information may have been added in the new version).

2. Connect via SSH and run the command iwconfig or iw list (for advanced users).

3. Check the router model on the manufacturer's website—the specifications always indicate the supported standards.

6. Specialized programs for Wi-Fi analysis

If built-in tools don't provide an answer, use professional software. These programs display not only the protocol but also the channel, bandwidth, signal strength, and neighboring networks.

For Windows/macOS/Linux

• 🖥️ inSSIDer (from MetaGeek) - shows the protocol in the column Standard.
• 📡 Acrylic Wi-Fi - in the free version it displays PHY (physical standard).
• 🐧 LinSSID (for Linux) - an open source analogue of inSSIDer.

For mobile devices

• 📱 WiFi Monitor (Android) - displays Wi-Fi Standard in real time.
• 🍎 Network Analyzer (iOS) - shows the speed and indirectly determines the protocol.

Example of a report in inSSIDer:

⚠️ Attention: Some programs (eg. Acrylic Wi-Fi) require the installation of drivers for the Wi-Fi adapter. Without them, they won't be able to detect the protocol.

7. How to find out which protocol your device supports

Sometimes the problem isn't with the router, but with the device itself. For example, an old laptop may not support Wi-Fi 5, which is why it connects slowly 802.11n.

Method 1: View specifications

Find the model of your device (for example, Samsung Galaxy S22 or MacBook Pro 2020) and check the section on the manufacturer's website Wireless Connectivity or Wireless networks.

Method 2: Via Device Manager (Windows)

As mentioned earlier, in Device Manager You can see the supported standards of the Wi-Fi adapter. For example:

• Intel Wi-Fi 6 AX200 → supports 802.11ax.
• Broadcom 4352 → supports 802.11ac.
• Realtek RTL8188EE → only 802.11n.

Method 3: Via Terminal (macOS/Linux)

On macOS, enter in Terminal:

system_profiler SPAirPortDataType

On Linux:

lspci -v | grep -A 10 Network

In the results, look for lines mentioning 802.11.

8. Common problems and solutions

Sometimes external factors interfere with determining a protocol. Let's look at some typical situations.

Problem 1: The router displays one protocol, but the device connects using another.

This is normal! The router can broadcast the network in mode 802.11n/ac, but the device is old (for example, iPhone 6) connect only by 802.11n.

Solution: If all your devices are modern, select in the router settings 802.11ac only (for 5 GHz) or 802.11n/ac/ax (for mixed mode).

Problem 2: The speed is lower than it should be according to the protocol

For example, the router and laptop support 802.11ac (up to 1.3 Gbps), but the actual speed is 200 Mbps.

Causes and solutions:

• 📶 Interference: Change the channel in the router settings (use inSSIDer for workload analysis).
• 🔌 Cable from the provider: Check your cable speed (maybe limited by your internet provider).
• 🔄 Channel width: In the router settings, set 40 MHz for 2.4 GHz or 80 MHz for 5 GHz.

Problem 3: The device does not see the 5 GHz network

Some budget smartphones and laptops only support 2.4 GHz.

Solution:

• Check the device specifications.
• If 5 GHz is supported, but the network is not visible, enable it in the router settings 802.11a/n/ac for 5 GHz.
• Make sure your router's country is set to the correct region (e.g. Russia or Europe).

⚠️ AttentionIn some countries (such as Japan), the 5 GHz band is restricted. If you imported your router from abroad, you may need to change the region in the settings.

FAQ: Frequently Asked Questions

My router supports Wi-Fi 6, but my phones connect via Wi-Fi 5. Why?

This is fine! Wi-Fi 6 (802.11ax) backward compatible with Wi-Fi 5 (802.11ac)If your smartphone does not support 802.11ax, he will connect via 802.11acTo force devices to use Wi-Fi 6, update their firmware or buy new gadgets with support 802.11ax.

Which protocol is best for a home network?

Depends on your devices:

• If all gadgets are modern (released after 2018) - choose 802.11ax (Wi-Fi 6).
• If you have older devices (before 2015), but need speed - 802.11ac (Wi-Fi 5).
• If range and stability are important (for example, for a smart home), leave the mixed mode 802.11n/ac.

Is it possible to find out the Wi-Fi protocol on a Smart TV?

On the majority Smart TV (Samsung, LG, Sony) There are no built-in tools for protocol detection. But you can:

1. Go to network settings and check the connection speed (for example, 300 Mbps speaks about 802.11n).
2. Find your TV model on the manufacturer's website and check the specifications.
3. Use a router with this feature Client List (list of connected devices), where the protocol is sometimes indicated.

Does Wi-Fi protocol affect ping in games?

Yes, and very much so! The more modern the protocol, the lower the delays:

• 802.11n: ping ~30-50 ms (not ideal for online games).
• 802.11ac: ping ~10-30 ms (good for most games).
• 802.11ax: ping ~5-15 ms (optimal for e-sports).

Also important channel width: for games it is better to use 5 GHz with a width of 80 MHz.

How do I update the Wi-Fi protocol on an old device?

Unfortunately, It is not possible to update the protocol programmatically — it depends on the hardware (Wi-Fi chip). The only options are:

• Buy external USB Wi-Fi adapter with support for new standards (for example, TP-Link Archer TX3000E For Wi-Fi 6).
• Use Powerline adapters or an Ethernet cable for stationary devices.
• Update your router firmware—sometimes manufacturers add support for new standards to older models.