How to connect a PC to Wi-Fi without a cable or adapter: all working methods

Connecting a desktop PC to a wireless network without additional equipment is a familiar problem for many. It might seem like without a built-in Wi-Fi module or USB adapter, all you have to do is run a cable from the router—but that's not the case. There are at least 5 ways Set up a wireless connection using available tools or hidden features of your computer.

In this article, we'll explore all the current methods—from using your smartphone as a modem to the less obvious capabilities of motherboards with integrated Wi-Fi. We'll pay special attention to compatibility issues (for example, why Windows 11 may not see the 5 GHz network) and alternative solutions For Linux and macOS users. If you think you can't get by without an adapter, check these options first.

Spoiler: in 60% of cases The standard features of your PC or the gadgets you already have on hand are sufficient for connection. And if you do decide to purchase additional equipment, there's a checklist for choosing an affordable and reliable Wi-Fi adapter at the end of the article.

Method 1: Using a smartphone as a USB modem (the most reliable)

This is a universal method that works on any PC—from an old office system unit to a gaming monster. The main condition: Your smartphone must have access to mobile Internet (3G/4G/5G) or it must already be connected to the same Wi-Fi network to which you want to connect your PC.

How does it work technically? The smartphone acts as bridge between the wireless network and your computer by transferring data via a USB cable. This method more stable, than distributing Wi-Fi over the air (we'll talk about that below), since it doesn't depend on interference or distance to the router.

• 📱 Suitable for: Android (versions 6.0+) and iPhone (iOS 12+)
• ⚡ Speed: up to 80% of the maximum mobile internet speed
• ⚠️ Limitation: drains your smartphone's battery (it's best to connect it to a charger)

Instructions for Android:

1. Connect your smartphone to your PC via USB cable (preferably original).
2. On your phone, go to Settings → Wireless & networks → Tethering & portable hotspot.
3. Activate the option USB modem (on some firmware versions it may be called USB Internet).
4. On your PC, check the connection: Control Panel → Network Connections a new device should appear.

For iPhone:

1. Connect your iPhone to your PC via Lightning/USB-C cable.
2. On the phone: Settings → Tethering and turn it on Allow others.
3. On PC in Device Manager check that the device has appeared Apple Mobile Device Ethernet.

⚠️ Attention: On Windows 7 and later, you may need to install a driver. Apple Mobile Device Support from the Apple website. Without it, the PC won't recognize the connection.

Method 2: Sharing Wi-Fi from your phone (Wi-Fi Hotspot)

If you don't have a USB cable handy, you can set up an over-the-air connection—where your smartphone distributes the internet like a router. This method is convenient for its portability, but it has some drawbacks. two critical flaws:

1. The speed will be lower than with a USB connection (due to interference and Wi-Fi protocol limitations).
2. Your smartphone's battery will drain 2-3 times faster.

How to set up Hotspot on Android:

• 🔄 Open Settings → Wireless & networks → Tethering & portable hotspot.
• 📶 Select Wi-Fi hotspot and set up the network name (SSID) and password.
• 🔄 Activate the access point.
• 🖥️ On your PC, connect to the new network as you would to a regular Wi-Fi network.

For iPhone:

• 📱 Go to Settings → Tethering.
• 🔄 Turn on Allow others and set a password.
• 🖥️ On your PC, find the network with the name of your iPhone (for example, iPhone (YourName)).

⚠️ Attention: Some mobile operators block internet tethering (especially on unlimited plans). If your PC isn't connecting, check your plan's terms or try the USB connection.

3. Method: Built-in Wi-Fi on the motherboard (hidden feature)

Few people know, but many modern motherboards (especially for Intel And AMD processors) have a built-in Wi-Fi module, even if you didn't buy it separately. This applies to motherboards premium And average segment, released after 2018.

How to check if you have built-in Wi-Fi:

1. Check the motherboard model (you can do this through msinfo32 in Windows or command sudo dmidecode -t baseboard in Linux).
2. Find the model specifications on the manufacturer's website (e.g. ASUS, Gigabyte, MSI).
3. Look for mentions Wi-Fi 5, Wi-Fi 6, Intel AX200 or M.2 Key E.

If the module is there but does not work:

• 🔧 Install the driver from the board manufacturer's official website.
• 🔄 Enable Wi-Fi in BIOS (Advanced → Onboard Devices → Wi-Fi).
• 📡 Check in Windows Device Manager → Network Adapters — should appear Wireless Adapter.

⚠️ Attention: On boards with a connector M.2 Key E The Wi-Fi module may not be installed from the factory. In this case, it can be purchased separately (for example, Intel AX200NGW for ~2000₽).

4. Method: Connecting via a second computer or laptop (network bridge)

If you have a laptop or a second PC with Wi-Fi, you can use it as intermediary to connect the main computer to the network. This method is called Bridge Connection (network bridge) and works on all versions of Windows.

How does this work:

1. The laptop connects to the Wi-Fi network.
2. Through Ethernet cable The laptop connects to the main PC.
3. Internet sharing is configured on the laptop.

Step-by-step instructions for Windows:

1. On the laptop: Control Panel → Network Connections.
2. Select Wireless network (Wi-Fi), right-click → Properties → tab Access.
3. Check the box Allow other network users to share your Internet connection.
4. From the drop-down menu, select Ethernet (connection via cable to PC).
5. On the main PC in Network connections An internet connection should appear automatically.

For macOS:

1. Open System Preferences → Sharing.
2. Select Public Internet from the list on the left.
3. IN General connection please indicate Wi-Fi, and in For computers using — Ethernet.
4. Connect your PC via cable and enable sharing.

The laptop is connected to Wi-Fi|The Ethernet cable is working|The VPN is disabled on the laptop|The firewall is temporarily disabled on the PC|Administrator rights are on both devices-->

5. Method: Alternative adapters (if nothing helps)

If the previous methods did not work, there are two options left:

1. Buy external Wi-Fi adapter (USB or PCIe).
2. Use non-standard devices with Wi-Fi support (for example, Smart TV or game console like a bridge).

USB adapters — the simplest solution. They're inexpensive (starting at 500 rubles), compatible with any PC, and don't require opening the system unit. The best models of 2026:

• 🥇 TP-Link Archer T3U Plus (Wi-Fi 6, speed up to 1300 Mbps)
• 🥈 ASUS USB-AX56 (Wi-Fi 6, MU-MIMO support)
• 🥉 Tenda U12 (budget option, Wi-Fi 5, up to 1200 Mbps)

PCIe adapters Suitable for desktop PCs if you don't want to take up a USB port. They're more expensive (starting at 1500₽), but offer better stability and speed:

• 🖥️ TP-Link Archer TX3000E (Wi-Fi 6, speed up to 2400 Mbps)
• 🖥️ ASUS PCE-AX58BT (Wi-Fi 6, Bluetooth 5.0)

Non-standard solutions:

• 🎮 PlayStation 5 or Xbox Series X You can use it as a bridge: connect the console to Wi-Fi and the PC to the console via cable.
• 📺 Some Smart TV (For example, Samsung QLED 2020+) support the regime USB Ethernet - You can connect a PC via the TV's USB port.

⚠️ Attention: When purchasing a USB adapter, pay attention to the supported standards. Adapters with Wi-Fi 4 (802.11n) are already outdated and will not provide stable operation in busy networks.

6. Troubleshooting: Why Your PC Won't Connect to Wi-Fi

If you've tried everything but your internet still isn't working, check these points:

If the problem is in the router:

• 🔄 Reboot it (turn it off for 30 seconds).
• 📡 Check if the mode is enabled 802.11r (Fast Roaming) - It may block some devices.
• 🔐 Make sure that your router's security settings are not set WPA3-Enterprise (use WPA2-PSK).

Critical Information: Some Wi-Fi adapters may not work on Windows 11 due to mandatory driver signature verification. To disable this, restart your PC while holding down the [Enable] key. F8, select Disabling mandatory driver signature verification and install the driver again.

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

Is it possible to connect a PC to Wi-Fi without an adapter if I only have macOS?

Yes, on Mac you can:

1. Use iPhone in USB modem mode (the most stable method).
2. Tune Public Internet via another Mac or iPad.
3. If you have Mac mini or iMac 2018 and newer - they already have Wi-Fi built in, just check the settings.

Older Macs (pre-2012) may require a USB adapter, as they often lack support for modern Wi-Fi standards.

Why doesn't Windows 10 see 5 GHz Wi-Fi, but only 2.4 GHz?

This is a typical problem associated with:

• Outdated Wi-Fi adapter driver (update it manually from the manufacturer's website).
• Router settings (check if the mode is enabled) 802.11a/n/ac for 5 GHz).
• Limitations of the adapter itself (cheap models only support 2.4 GHz).

To force 5GHz:

1. Open Device Manager → Network Adapters.
2. Find your Wi-Fi adapter, open it Properties → Advanced.
3. Change the value Wireless Mode on 802.11a or 802.11ac.

Can I connect my PC to Wi-Fi via HDMI or DisplayPort?

No, these interfaces do not transmit network data. However, there are indirect methods:

• If you have Smart TV with Wi-Fi and port USB → Ethernet, you can connect your PC to your TV via USB (but this only works on some models Samsung And LG).
• Some monitors (eg. ASUS ProArt) have a built-in USB-hub with Ethernet support, but this is rare.

In other cases, HDMI and DisplayPort are intended only for transmitting video and audio.

How to connect a PC to Wi-Fi via Bluetooth?

Technically it is possible, but extremely inconvenient:

1. Your PC and smartphone must support Bluetooth 4.0+.
2. Turn on your phone Modem mode → Bluetooth modem.
3. On your PC, connect to your phone as a network device.

Cons:

• The speed does not exceed 3–5 Mbps (like the old ADSL).
• High smartphone battery consumption.
• Frequent connection breaks.

This method is only suitable for emergency cases (for example, downloading a small driver).

What router settings can block a PC connection?

Check these settings in the router's web interface (192.168.1.1 or 192.168.0.1):

• 🔒 MAC address filtering - If enabled, add your PC's MAC to the whitelist.
• 📡 Hiding the SSID - If the network is not broadcast, enter its name manually on your PC.
• 🔄 802.11r (Fast Roaming) mode - Disable it if the adapter does not support it.
• 🛡️ WPA3 protection - some older adapters only work with WPA2-PSK.
• 📶 Device restrictions — check if the maximum number of connected gadgets has been reached.