How to Connect Two Computers with a LAN Cable: Step-by-Step Guide

Want to transfer files between two PCs or set up a local network without relying on Wi-Fi? One of the fastest and most stable methods is using a LAN (Ethernet) cable to connect two computers directly. Whether you're a gamer, IT student, or just looking for a quick file-sharing solution, this guide is for you.

how to connect 2 computers with lan cable

🔌 What You Need

Before we dive into the steps, make sure you have:

• ✅ Two computers with Ethernet (LAN) ports

• ✅ One Ethernet (RJ45) cable – CAT5e, CAT6, or higher

• ✅ Windows or Linux operating system (this guide focuses on Windows)

💡Note: Most modern computers support Auto-MDI/X, so you don’t need a crossover cable — a standard Ethernet cable works fine.

🧭 Step-by-Step: How to Connect 2 Computers with LAN Cable

Step 1: Plug in the LAN Cable

Connect one end of the LAN cable to Computer A and the other end to Computer B.

Step 2: Set IP Addresses Manually

On Windows 10 / 11:

1. Go to Control Panel > Network and Sharing Center > Change adapter settings.

2. Right-click on Ethernet, then select Properties.

3. Click on Internet Protocol Version 4 (TCP/IPv4), then click Properties.

4. For Computer A, set:

   • IP address: 192.168.1.1

   • Subnet mask: 255.255.255.0

5. For Computer B, set:

   • IP address: 192.168.1.2

   • Subnet mask: 255.255.255.0

Click OK to save the settings on both PCs.

Step 3: Enable File and Printer Sharing

1. Go to Control Panel > Network and Sharing Center > Advanced sharing settings.

2. Turn on Network Discovery and File and Printer Sharing on both computers.

3. Ensure both PCs are on the same private network profile.

Step 4: Share Folders or Drives

On either computer:

1. Right-click the folder or drive you want to share.

2. Choose Properties > Sharing > Advanced Sharing.

3. Check “Share this folder” and give it a recognizable name.

4. Click on Permissions to control access (read or write).

Step 5: Access Shared Content

• On Computer A, press Win + R and type \192.168.1.2 to access Computer B.

• On Computer B, type \192.168.1.1 to access Computer A.

Shared folders will now be visible and accessible between the two systems.

🧪 What Can You Do After Connecting?

• ✅ Transfer large files quickly (much faster than USB or Wi-Fi)

• ✅ Set up a LAN multiplayer game environment

• ✅ Create a peer-to-peer local network

• ✅ Use one PC’s internet (via bridging or ICS)

🛠️ Troubleshooting Tips

🌐 Bonus: Can You Share Internet via LAN Cable?

Yes. On the computer with an internet connection:

1. Go to Network Connections.

2. Right-click on the active internet connection > Properties > Sharing tab.

3. Enable 'Allow other network users to connect...'

4. Choose the Ethernet adapter connected to the other computer.

📦 Final Thoughts

Connecting two computers using a LAN cable is a fast, secure, and efficient method for sharing files or creating a small network. Unlike cloud storage or USB drives, LAN connections offer real-time communication and higher speeds, making it ideal for office setups, IT labs, or gaming LAN parties.