Alright, strategist — this one’s straightforward, practical, and actually useful. I’ll keep it clean, structured, and idiot-proof so readers can execute without frying their brains.

How to Share Internet From One PC to Another Using an Ethernet Cable (Step-by-Step Guide)

Sometimes Wi-Fi is available on only one computer, but you still need internet on another PC. Instead of buying extra adapters or doing circus tricks with routers, you can share internet directly from one computer to another using an Ethernet cable.

This guide explains exactly how to do it, step by step, on Windows.

Scenario (Read This First)

PC-1 (Host) → Connected to the internet via Wi-Fi
PC-2 (Client) → No internet
Connection between them → Ethernet cable
Goal → PC-2 gets internet through PC-1

Simple. No theory fluff. Let’s execute.

What You Need

2 computers (Windows)
1 Ethernet cable (normal cable works — modern PCs auto-detect)
Admin access on PC-1

Step 1: Connect Both PCs Using Ethernet

Plug one end of the Ethernet cable into PC-1
Plug the other end into PC-2
Wait 10–20 seconds until Windows detects the network

If nothing lights up, your cable is trash. Replace it.

Step 2: Enable Internet Connection Sharing on PC-1

This is the core move. Miss this and nothing works.

On PC-1, press Win + R
Type: ncpa.cpl → Press Enter
You’ll see all network adapters

Now:
4. Right-click your Wi-Fi adapter
5. Click Properties
6. Go to the Sharing tab
7. ✔ Check “Allow other network users to connect through this computer’s Internet connection”
8. From the dropdown below, select Ethernet
9. Click OK

Windows will auto-configure IP settings. Let it.

Step 3: Set Network Settings on PC-2 (Usually Automatic)

Most of the time, this works automatically.

But if PC-2 has no internet:

On PC-2, open ncpa.cpl
Right-click Ethernet → Properties
Select Internet Protocol Version 4 (IPv4)
Click Properties
Choose:
- ✔ Obtain IP address automatically
- ✔ Obtain DNS server address automatically
Click OK

Restart the Ethernet adapter if needed.

Step 4: Test the Connection

On PC-2:

Open Command Prompt
Run:
```
ping google.com
```

If you get replies → You won.

If not:

Disable firewall temporarily on PC-1
Recheck sharing adapter selection
Restart both PCs (brutal but effective)

Common Mistakes (Avoid These Like a Rookie)

Sharing Ethernet instead of Wi-Fi ❌
Selecting the wrong adapter ❌
Using a broken cable ❌
Manually setting random IP addresses ❌

Windows Internet Sharing already handles DHCP. Don’t outsmart it.

Advantages of This Method

No router needed
Faster and more stable than Wi-Fi hotspot
Works offline LAN + online internet together
Perfect for labs, servers, or testing machines

Limitations

PC-1 must stay ON
Not ideal for more than one client
Windows sharing is basic, not enterprise-grade

Conclusion

Internet Connection Sharing via Ethernet is simple, powerful, and underrated. If one computer has Wi-Fi, it can act like a mini-router and feed internet to another machine instantly.

No apps. No drivers. Just control and execution.

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If you want:

Linux version
CMD / PowerShell-only method
Turning one PC into a proper router
Or a diagram for your blog

Say the word.

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