How to Connect a Laptop to the Internet Through Another Computer

Using Internet Connection Sharing (ICS), you can use a host computer at home to provide an Internet connection to many devices, specifically a laptop computer. This can save money on routers, and in many cases provide more heightened security than when using a hardware router. Internet Connection Sharing can also be used to share a connection with more than one laptop or other devices.

Step

On the host computer, navigate to "Start Menu," "Control Panel" and "Network Connections."

Step

Right click on your Internet connection and click "Properties," then click the "Advanced" tab.

Step

Under "Internet Connection Sharing," check the “Allow Other Network Users to Connect Through This Computer” box.

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Click "OK," make note of the IP address and subnet mask listed, which should be: IP address – 192.168.0.1 and subnet mask – 255.255.255.0, then click "Yes."

Step

On the client computer, navigate to the "Start Menu," "Control Panel," "Network Connections" and "Local Area Network."

Step

Right click on "Local Area Connection," click "Properties," then click the "General" tab. Click on "Internet Protocol (TCP/IP)," then click "Properties."

Step

In the "Internet Protocol (TCP/IP)" window, click "Obtain an IP Address Automatically," then click "OK."

Step

Navigate to the "Start Menu," "Control Panel," "Network Connections" and double click on the "New Connection Wizard" and follow the on-screen instructions.