How to check for Wi-Fi on your computer: detailed instructions with photos

Have you bought a new laptop or built a desktop PC, but aren't sure if it supports wireless networks? Or has your Wi-Fi suddenly stopped working, and you want to figure out if the problem is with the adapter, drivers, or router? In this article, we'll take a look. 7 ways to check for Wi-Fi module presence on a computer running Windows 10/11, macOS or Linux, and we will also learn how to diagnose typical faults.

It is important to understand the difference between physical presence of the adapter (does the device have a Wi-Fi module) and performance (whether it's configured and connected correctly). We'll cover both aspects: from visual inspection to command-line testing. If you're unsure, don't worry: each method is provided with step-by-step screenshots and explanations.

First, let's answer the main question: Do all computers support Wi-Fi? No. Desktop computers are often sold without a built-in adapter—one must be purchased separately (as a PCIe card or USB dongle). Laptops, on the other hand, almost always come with a module, but it may be disabled in the BIOS or broken. Below you'll learn how to check this.

1. Visual inspection: where to look for a Wi-Fi adapter

The easiest way is find a physical module Inside the case or on the device's body. This is relevant if you're building a PC yourself or buying used equipment.

For laptops And monoblocks:

• 🔍 Look at stickers on the side or bottom of the case. Often, the Wi-Fi/Bluetooth module models are indicated there (for example, Intel AX200 or Qualcomm Atheros QCA61x4).
• 📋 On some devices (eg. Lenovo ThinkPad) There is hardware Wi-Fi switch — a small button or slider on the sidebar.
• 🔧 If you are ready to disassemble the laptop, the Wi-Fi module is usually located under the RAM cover or a separate small cover (marked WLAN or WIRELESS).

For stationary PCs:

• 🖥️ Open the side cover of the case and find PCIe card with antennas (usually inserted into a slot next to the video card). Popular models: TP-Link Archer T6E, ASUS PCE-AC56.
• 🔌 If there are no antennas, check USB ports - it is possible that an external adapter is used (for example, TP-Link TL-WN725N).
• ⚠️ Attention: Not all motherboards have built-in Wi-Fi. For example, budget models Gigabyte B450M or MSI H310M require a separate module.

If you can't find the adapter visually, don't despair. It may be built into the motherboard (this applies to some ASUS ROG or MSI MEG) or simply disabled in the system. Let's move on to software verification methods.

2. Checking via Device Manager (Windows)

device Manager — is a "hospital" for all PC components. Here you can see whether the system recognizes the Wi-Fi adapter and check its status.

How to open:

1. Click Win + R, enter devmgmt.msc and press Enter.
2. Expand the tab Network Adapters.

What to look for:

• 📡 Names with words Wireless, Wi-Fi, WLAN, 802.11 (For example, Intel(R) Wi-Fi 6 AX201 160MHz).
• ⚠️ If there is a next to the name yellow exclamation mark — problem with drivers.
• 🔴 The absence of such devices means that the adapter physically absent or it is disabled in BIOS.

Check the antenna connections (for PCIe cards)|Update the motherboard BIOS|Make sure the module is not disabled in the BIOS (Advanced → Onboard Devices section)|Try connecting an external USB adapter for testing-->

Critical detail: if there is a device with the name in the list Microsoft Wi-Fi Direct Virtual Adapter, this does NOT mean there is a physical module. It's a virtual adapter for Wi-Fi Direct technology (for example, for connecting to printers).

3. Command line: quick diagnostics

For those who like precision, checking through is suitable CMDThis method works even if the Windows GUI is unresponsive.

Open Command Prompt (Win + R → cmd → Enter) and enter one by one:

netsh wlan show drivers
ipconfig /all | find "Wireless"

What do the results mean:

• 🟢 If after the first command you see the line Radio type: 802.11n/ac/ax - adapter exists and supports modern Wi-Fi standards.
• 🟡 If the second command returns Media is disabled — there is an adapter, but disabled by software (for example, using a button on the case or in the settings).
• 🔴 Message No wireless interfaces — the module is missing or is not recognized by the system.

What to do if the command doesn't work?

If after entering netsh wlan show drivers If you see the error "WLAN Automatic Configuration Service is not running", run:

1. net start WlanSvc (service start)
2. sc config WlanSvc start=auto (autostart settings)

After rebooting, please check again.

For Linux (Ubuntu/Debian) use the command:

lspci -knn | grep -iA3 net
iwconfig

Look for lines with Network controller or wlan0.

4. Checking on macOS: Apple Features

On MacBook or iMac The Wi-Fi module is always built-in, but its operation depends on the macOS version and the device model. For example, older MacBook Air 2013 support only Wi-Fi 4 (802.11n), and new ones MacBook Pro M1/M2 — Wi-Fi 6 (802.11ax).

How to check:

1. Click on the icon Wi-Fi in the upper right corner → Open Network Preferences.
2. In the section «Wi-Fi» Connection information should be displayed. If it's not, the adapter is disconnected or faulty.
3. For more information: Option (⌥) + click the Wi-Fi icon → a menu with information about the module will appear.

If Wi-Fi is not working:

• 🔄 Reboot SMC (for Intel-Mac): Shut down your Mac, hold down Shift + Control + Option + power button for 10 seconds.
• 🛠️ Reset NVRAM: hold down when turning on Command + Option + P + R until the second beep.
• ⚠️ Attention: On a Mac with chips Apple Silicon (M1/M2) SMC reset is not required - use instead Apple Diagnostics (hold the power button while turning on).

5. Checking via BIOS/UEFI

If the adapter is not visible in the system, it may be disabled at the BIOS levelThis is relevant for laptops. HP, Dell or Lenovo, where Wi-Fi can be deactivated to save energy.

How to enter BIOS:

• 🖥️ For Windows: Settings → Update & Security → Recovery → Restart now → Diagnostics → Advanced Options → UEFI Firmware Settings.
• 🍎 For Mac: hold Command + R when turned on.
• 💻 For older PCs: click Del, F2 or F12 when loading (depending on the motherboard model).

What to look for in BIOS:

⚠️ Attention: On some laptops (eg. Dell Latitude) Wi-Fi may be blocked BIOS administrator passwordIf you don't know the password, please contact the manufacturer's support service.

6. Diagnostics of drivers and network settings

Even if the adapter is physically present, it may not work due to outdated drivers or incorrect settingsLet's look at typical problems.

Problem 1: The driver is missing or corrupted

• 🔧 Open device Manager, find the adapter → RMB → Update Driver → Automatic search.
• 🌐 If Windows does not find the driver, download it from the manufacturer's website (for example, for Intel AX200 - With intel.ru, For Realtek RTL8821CE - With realtek.com).
• ⚠️ Attention: Never install drivers from third-party websites (for example, driverpack.io) — they may contain viruses. Use only official sources!

Problem 2: Wi-Fi is on but won't connect

• 📶 Check if it is enabled Airplane mode (Win + A → button in the upper right corner).
• 🔄 Restart the service WLAN AutoConfig:

  net stop WlanSvc
  net start WlanSvc

• 🔧 Reset network settings:

  netsh winsock reset
  netsh int ip reset

  Once completed, restart your PC.

7. Alternative verification methods

If standard methods don't help, use these tools:

Method 1: Third-party utilities

• 🛠️ HWiNFO - shows detailed information about all PC components, including the Wi-Fi module (section «Network»).
• 📊 Speccy (from the developers CCleaner) - in the section "Net" Displays the adapter model and supported standards.
• 🔍 AIDA64 — a professional diagnostic tool (paid, but there is a trial version).

Method 2: Checking via Linux Live USB

• 🐧 Download the distribution Ubuntu or Linux Mint and write it to a flash drive (for example, via Rufus).
• 💻 Boot from the flash drive (select in BIOS USB drive as the first boot device).
• 📡 In a live system, open a terminal and enter lshw -C networkIf the adapter is present, you will see a line with wireless.

Method 3: Test with an external adapter

• 🔌 Buy or borrow USB Wi-Fi adapter (For example, TP-Link TL-WN722N for 500–1000 ₽).
• 🖱️ Connect it to your PC. If Wi-Fi works, the problem is built-in module.
• 💡 This will also help you check if your Wi-Fi is blocking antivirus (For example, Kaspersky or ESET).

FAQ: Frequently asked questions about checking Wi-Fi on a PC

My laptop can't detect Wi-Fi networks, but the adapter is listed in Device Manager. What should I do?

The problem may be as follows:

• 🔌 The router is not broadcasting the network (check the indicators on it).
• 📶 Not the right range: Some adapters do not support 5 GHz (try connecting to 2.4 GHz).
• 🔒 MAC address filtering in the router settings (disable it or add your PC's MAC).
• 🛠️ Driver error: Uninstall the adapter in Device Manager and click Update Configuration.

How do I know which Wi-Fi standard my adapter supports?

There are several ways:

• 📋 Check out the model name in Device Manager and find the specifications on the manufacturer's website.
• 🖥️ In Windows 11: Settings → Network & Internet → Wi-Fi → Hardware Properties.
• 📊 In Linux: team iw list | grep -i "supported".

For example, Intel AX200 supports Wi-Fi 6 (802.11ax), A Realtek RTL8188EE - only Wi-Fi 4 (802.11n).

Is it possible to add Wi-Fi to a desktop PC without a PCIe card?

Yes, there are 3 options:

• 🔌 USB adapter (the easiest way, price from 300 ₽).
• 🖥️ PCIe card (requires a free slot on the motherboard, price from 1500 ₽).
• 📡 External router in bridge mode (connects via Ethernet and distributes Wi-Fi).

For gaming or streaming video, it is better to choose PCIe adapter (For example, ASUS PCE-AC58BT with support Wi-Fi 5 And Bluetooth 5.0).

Why does Wi-Fi work on my phone but not on my PC?

Possible reasons:

• 📵 PC is out of range: the router signal may not reach the computer (check the signal level in netsh wlan show interfaces).
• 🔒 Device restrictions in the router (for example, connection limit).
• 🔄 Incompatible settings: the router is configured to 802.11r (fast roaming), and the PC adapter does not support this standard.
• 🛠️ IP issues: reset DNS cache (ipconfig /flushdns).

How to check Wi-Fi on a PC without an operating system?

If there is no OS installed on your PC, use:

• 🐧 Linux Live USB (as described above).
• 🖥️ BIOS: some versions (for example, on motherboards ASUS ROG) show information about network devices.
• 🔧 Multimeter: If you are knowledgeable in electronics, you can check the power supply on the Wi-Fi module contacts (for PCIe cards this is +3.3V And +12V).

⚠️ Attention: Testing with a multimeter requires experience - incorrect actions can damage the motherboard!