How to set up Wi-Fi on a computer if you don't have one: all the methods, from a USB adapter to a smartphone

• Built-in - compact, but weak signal.
• External - catches better, but takes up space.

⚠️ Attention: Cheap adapters without external antennas (for example, TP-Link TL-WN725N) may not work well at distances greater than 10 meters from the router or through walls. If you have a large apartment, choose a model with a detachable antenna.

How to connect:

Insert the adapter into a USB port (preferably 3.0 for high speed)|Wait for the drivers to install automatically (Windows usually finds them on its own)|If the driver is not installed, download it from the manufacturer's website|Restart your computer|Connect to Wi-Fi via the taskbar (network icon → select the network → enter the password)-->

3. Method 2: PCI-E adapter - maximum speed and stability

If you are not afraid to open the computer case, PCI-E adapter — the best choice for a desktop PC. It fits into a slot. PCI Express on the motherboard and provides:

• 🚀 High speed (to 2,400 Mbps and above).
• 📶 The best signal thanks to external antennas.
• 🔧 Reliability (it won't fall out of USB like an external adapter).

Cons:

• ⚠️ Requires PC disassembly (not suitable for laptops).
• ⚠️ More expensive than USB adapters (from 1 500 ₽).
• ⚠️ Takes up a slot PCI-E (may conflict with the video card on small boards).

Popular models:

How to install a PCI-E adapter:

1. Turn off your computer and unplug the power cable.
2. Remove the side cover of the case.
3. Find a free slot PCI-E x1 (usually the shortest).
4. Remove the plug on the back of the case opposite the slot.
5. Insert the adapter into the slot and secure it with the screw.
6. Connect the antennas (if they are removable).
7. Close the case, turn on the PC and install the drivers.

For owners Mini-ITX cases: some PCI-E adapters (eg. ASUS PCE-AC51) have a low-profile design and are suitable for compact assemblies.

4. Method 3: Smartphone as an access point (mobile hotspot)

If you urgently need to connect your PC to the Internet, but don’t want to buy an adapter, you can use smartphone in hotspot modeThis is a temporary solution, but it works on any computer—even without a network card!

Pros:

• ✅ No need to buy equipment.
• ✅ Works everywhere, where there is mobile network coverage.
• ✅ Easy setup (2-3 clicks).

Cons:

• ❌ Traffic limitation (if you do not have an unlimited tariff).
• ❌ High latency (ping) - not suitable for online games.
• ❌ Drains battery quickly smartphone.

How to set up:

On Android:

1. Open Settings → Network & Internet → Hotspot & Tethering.
2. Select "Wi-Fi Hotspot".
3. Set the network name (SSID) and password.
4. Turn on the access point.
5. On your PC, connect to the created network as you would to a regular Wi-Fi network.

On iPhone (iOS):

1. Open Settings → Personal Hotspot.
2. Turn on "Allow others".
3. Set a password (random by default).
4. On your PC, select the network with the name of your iPhone.

⚠️ Attention: Some operators block the modem mode or limit the speed. For example, MTS On the “Everything for Your Own” tariff, the access point only works after the “Modem” option is activated (cost: from 50 ₽/day).

Connection speed depends on:

• 📶 Network coverage (4G/5G).
• 📱 Smartphone models (new iPhone or Samsung Galaxy support Wi-Fi 5 in access point mode).
• 🔋 Battery charge (at levels below 20%, some phones turn off the access point).

Android|iPhone (iOS)|I don't use|Other-->

5. Method 4: Ethernet bridge (if you have a router and network card)

If your computer is connected to the router via a cable (Ethernet), but you need Wi-Fi for other devices (or for the PC itself in another location), you can set up bridge between network interfacesThis method allows you to share internet from a cable to Wi-Fi, but requires:

• 🖥️ Computer with Wi-Fi adapter (even if it is not connected to the network).
• 🔌 Connecting to the router via Ethernet.
• ⚙️ Administrator rights in Windows.

How to set up a bridge in Windows 10/11:

1. Connect your computer to the router with a cable.
2. Open Control Panel → Network and Internet → Network and Sharing Center.
3. Click "Change adapter settings".
4. Select Ethernet (cable) and Wi-Fi (wireless adapter), then right-click → Bridge Settings.
5. Wait for the bridge to be created (may take up to 1 minute).
6. Now your PC will distribute Wi-Fi from the cable connection.

Limitations of the method:

• ❌ Low speed (the maximum is limited by the speed of the Wi-Fi adapter).
• ❌ Instability (the bridge may break under high load).
• ❌ Security (networks without a password are vulnerable to hacking).

The alternative is to use command line for Wi-Fi distribution:

netsh wlan set hostednetwork mode=allow ssid=MyWiFi key=12345678
netsh wlan start hostednetwork

After that, enable Internet sharing in the properties Ethernet- connections (Access tab).

⚠️ Attention: If you have Windows 10/11 Home, the Mobile Hotspot feature may not work via the bridge. In this case, use third-party programs like Connectify or mHotspot.

6. Method 5: Powerline adapters – Wi-Fi via electrical wiring

If the router is located far away and pulling the cable is inconvenient, you can use Powerline adaptersThey transmit the internet signal over electrical wiring your home and then convert it to Wi-Fi or Ethernet.

How does this work:

1. One adapter connects to the router cable and is inserted into the socket.
2. The second adapter is inserted into the socket next to the computer and connects to it via cable or distributes Wi-Fi.
3. Data is transmitted over electrical wires at speeds up to 1,200 Mbps (in reality – 200–500 Mbit/s).

Pros:

• ✅ More stable Wi-Fi (no interference from walls).
• ✅ Easier than pulling a cable across the entire apartment.
• ✅ Suitable for thick walls, where there is no Wi-Fi signal.

Cons:

• ❌ Expensive (a set of 2 adapters costs from 3 000 ₽).
• ❌ Depends on the quality of the wiring (in older houses the speed drops).
• ❌ Takes up sockets.

Popular models:

How to set up:

1. Connect the first adapter to the router with a cable and plug it into a power outlet.
2. Plug the second adapter into an outlet near the computer.
3. If the adapter has Wi-Fi, connect to its network as you would to a regular router.
4. If only Ethernet - connect the adapter to the PC with a cable.

7. Method 6: Built-in Wi-Fi module for the motherboard (M.2 Key E)

If your motherboard has a slot M.2 Key E (usually located next to the slots PCI-E or RAM), you can install internal Wi-Fi moduleThis solution is more compact. PCI-E-adapter and does not take up USB ports.

Advantages:

• ✅ Compactness (does not stick out from the body).
• ✅ Good signal (antennas are attached to the rear panel of the case).
• ✅ Bluetooth support (most modules combine both functions).

Flaws:

• ❌ Requires disassembling the PC.
• ❌ Not all boards support (slot needed) M.2 Key E).
• ❌ More expensive than USB adapters (from 2 000 ₽).

Popular modules:

How to install:

1. Purchase a module that is compatible with your motherboard (check on the manufacturer's website).
2. Turn off your PC and disconnect the power.
3. Remove the case cover and find the slot M.2 Key E (usually signed).
4. Insert the module into the slot at an angle of 30° and secure with a screw.
5. Connect the antennas to the connectors on the rear panel of the case (included).
6. Turn on your PC and install the drivers.

⚠️ Attention: Some modules (eg. Intel AX200) require a motherboard BIOS update for proper operation. Before purchasing, check the list of supported devices on the motherboard manufacturer's website.

8. Which method should I choose? Comparison table

FAQ: Frequently Asked Questions