How to connect a desktop computer to Wi-Fi: all the methods from A to Z

Desktop computers are traditionally associated with wired internet, and in vain. Connecting a desktop to Wi-Fi You can do this in 10 minutes, even if it doesn't have a built-in adapter. The main thing is to choose the right method from five possible options: from using a USB module to sharing the internet from a smartphone.

In this article we will analyze all current methods connecting a PC to a wireless network, including setup BIOS/UEFI, choosing adapters, and resolving common errors like "No connections available" or "Limited access." We'll pay special attention to the nuances for Windows 10/11 And Linux, and we'll also explain why it's sometimes better to buy an adapter for 500 rubles than to bother with settings Wi-Fi Direct.

Spoiler: If your computer was released after 2018, there's a good chance it already has built-in Wi-Fi module — you just need to activate it. You can check this in 30 seconds (instructions in the first section).

1. Checking the presence of a Wi-Fi adapter in the system

Before you run to the store for a USB module, make sure your PC doesn't have one built in. wireless adapterThis is true for many modern motherboards (for example, ASUS ROG Strix, Gigabyte B550 or MSI MAG), where Wi-Fi is integrated into the chipset.

To check:

1. Click Win + R, enter devmgmt.msc and press Enter.
2. IN Device Manager expand the tab Network adapters.
3. Look for devices with names like:
   • 📡 Intel Wi-Fi 6 (AX200, AX210)
   • 📡 Qualcomm Atheros (QCA61x4, QCA9377)
   • 📡 Realtek RTL88xx (8821CE, 8852AE)
   • 📡 Broadcom BCM43xx

If there are no such devices, the adapter is physically missing. If it is present but displayed with an exclamation mark, then drivers neededDownload them from the official website of the motherboard manufacturer (not from Windows Update!).

⚠️ Attention: On some motherboards, the Wi-Fi module is connected via a connector M.2 Key E (not to be confused with M.2 for SSD!). If in Device Manager There is no adapter, but there is a free one on the board Key E-slot - perhaps the module is simply not installed.

2. Connecting via a USB Wi-Fi adapter: selection and configuration

The most universal way is to buy USB Wi-Fi adapterIt's suitable for any PC, even one built 10 years ago. The main thing is to choose a model that supports modern standards (Wi-Fi 5 or Wi-Fi 6) and good speed.

Top 5 adapters for price/quality ratio (as of 2026):

After purchasing the adapter:

Insert the adapter into a USB port (preferably 3.0)|Install drivers from the official website|Restart the computer|Go to Settings → Network and Internet → Wi-Fi|Select your network and enter the password

-->

A critical detail: cheap adapters based on the Realtek RTL8188EU chip (priced at ~300–500 rubles) often lose connection and don't support modern encryption standards (e.g., WPA3). It's better to pay an extra 200–300 rubles for a model with RTL8812BU or Intel AX200.

3. Connect via PCIe Wi-Fi adapter: for maximum speed

If you need stable speed (for example, for online gaming or 4K streaming), the USB adapter may not be able to cope due to interface limitations. In this case, it is better to install PCIe Wi-Fi card into the slot on the motherboard.

Advantages of PCIe adapters:

• 🚀 Speed ​​up to 2400–5400 Mbps (USB has a maximum 1300 Mbps).
• 📶 Better signal thanks to external antennas.
• 🔌 Doesn't take up a USB port.
• 🎮 Lower ping in games (important for CS2, Valorant, Fortnite).

Cons:

• ⚠ Requires free PCIe x1 slot.
• ⚠ You need to open the system unit.
• ⚠ Price from 2500 rubles (versus 700–1500 rubles for USB).

Top 3 PCIe adapters:

1. ASUS PCE-AX58BT (Wi-Fi 6, 3000 Mbps, Bluetooth 5.0) is the best choice for gamers.
2. TP-Link Archer TX50E (Wi-Fi 6, 2400 Mbps) - a budget option with good antennas.
3. Intel Wi-Fi 6E AX210 (5400 Mbps) - for future standards 6 GHz.

Installation:

1. Turn off your PC and disconnect the power cable.
2. Remove the system unit cover.
3. Find a free one PCIe x1 slot (usually black or white).
4. Insert the adapter and secure with a screw.
5. Connect the antennas (if any).
6. Close the lid, turn on the PC and install the drivers.

⚠️ Attention: If you have a motherboard with M.2 Key E-slot (for example, ASUS Prime B550M-A), you can save money by buying M.2 Wi-Fi module (For example, Intel AX200NGW) instead of a PCIe card. It's cheaper and doesn't take up a PCIe slot.

4. Connection via smartphone (USB/Bluetooth/Wi-Fi Direct)

If you don't have an adapter at hand and you need the Internet urgently, you can use smartphone as a modemThere are three ways:

4.1 USB tethering (most stable)

Connect your phone to PC via USB cable, enable the modem mode in your smartphone settings (Settings → Hotspot & Tethering → USB Tethering). The computer will automatically receive Internet access.

Pros: high speed, low battery consumption.

Cons: takes up USB port.

4.2. Wi-Fi hotspot

Activate Modem mode on your phone, select Wi-Fi hotspotOn your PC, connect to the created network as you would to a regular router.

Pros: no cables required.

Cons: battery drains quickly, speed is lower than USB.

4.3. Bluetooth tethering (to save battery)

Pair your phone and PC Bluetooth, then turn on Bluetooth modem in your smartphone settings. The speed will be low (~1–3 Mbps), but the battery will be almost unused.

⚠️ Attention: Some operators (eg. Tele2 or Yota) block tethering or charge extra for it. Check your plan in your account before using it.

5. Configuring BIOS/UEFI for a Wi-Fi adapter

If you have installed PCIe or M.2 Wi-Fi adapter, but it is not detected by the system, check the settings BIOS/UEFIOften the module is disabled at the motherboard level.

How to enable:

1. Restart your PC and go to BIOS (usually a key Del, F2 or F12 when loading).
2. Find the section Advanced → Onboard Devices Configuration (the name may differ).
3. Look for parameters like:
   • Wi-Fi or WLAN → install Enabled.
   • M.2 Wi-Fi Module → Enabled.
   • PCIe/PCI Wireless LAN → Enabled.

If in BIOS There are no such options, which means the adapter is not supported by the motherboard (relevant for older models before 2015).

6. Solving typical connection errors

Even after properly setting up Wi-Fi on your PC, errors can still occur. Let's look at the most common ones:

ipconfig /release
ipconfig /renew

If the problem persists, check:

• 🔌 Does Wi-Fi work on other devices (phone, laptop)?
• 📶 How far away is the router? (For 5 GHz, the maximum range is 10–15 meters without obstacles).
• 🔄 Is the channel overloaded? (Use an app Wi-Fi Analyzer for ether analysis).

7. Optimizing Wi-Fi signal for desktop

Even after a successful connection, speed may drop due to interference or a weak signal. Here's how to improve your connection:

For USB adapters:

• 📍 Place the adapter on extension cord (so that it doesn’t hide behind the system unit).
• 🔌 Connect in USB 3.0 (blue connector) - this will reduce delays.
• 🛡️ Use foil screen behind the adapter (will strengthen the directional signal).

For PCIe adapters:

• 📡 Install antennas vertically and spread them at an angle of 45°.
• 🏠 Place the system unit closer to the router (or vice versa - the router closer to the PC).
• 🔧 Update your adapter drivers (especially important for Realtek And Mediatek).

Router settings:

• 🔄 Switch to 5 GHz (if the adapter supports it) - there is less interference.
• 🔒 Turn on WPA3 (if all devices support it).
• 📊 Limit channel width to 40 MHz (for 2.4 GHz) or 80 MHz (for 5 GHz) - this will increase stability.

To check the signal quality, use the command in CMD:

netsh wlan show interfaces

Pay attention to the parameter Signal (in percent). If it's below 60%, the signal is weak.

8. Alternative methods: Powerline and MoCA

If your Wi-Fi is constantly slow or you have thick walls, consider alternative technologies:

1. Powerline adapters

They transmit the Internet via electrical wiringSpeed ​​up to 1200 Mbps, but it depends on the quality of the wiring.

Example: TP-Link AV1000 (a pair of adapters ~3000 ₽).

2. MoCA adapters

They use coaxial cable (from antenna or cable TV). Speed ​​up to 2500 Mbps, but requires special wiring.

Example: goCoax MoCA 2.5 (~5000 ₽ per set).

3. Mesh systems

If the problem is in a large house, install Mesh routers (For example, TP-Link Deco or ASUS ZenWiFi). They create a single network without loss of speed.

⚠️ Attention: Powerline adapters may conflict with UPS (Uninterruptible power supplies). If you have a UPS, plug the adapters directly into the wall outlet, not through it.

FAQ: Frequently asked questions about connecting a PC to Wi-Fi