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Share Internet Connection Using your laptop's built-in WiFi

This time, we'll do what is called ad-hoc wifi connection to share Internet on two laptops when only one LAN cable is available. This usually happens to me at the office when me and my other office mate, who has a laptop, would share the same work space where only one LAN cable is available. So what I usually do is plug the cable on my laptop, configure my LAN connection to share internet access, set my laptop as wireless access point, and have my office mate connected to my access point using the built-in wifi, viola! We both have internet connection. What's good with this is that since we are wirelessly connected, he can work on the other side of the office or even on the next room and still have internet connection. You might want to do this too so here are the steps.


  • LAN cable with internet connection
  • two laptops or a pc that has built-in wifi or an adapter for wifi of some sort

Step-by-Step Guide

  • The first thing that should be done is to plug the LAN cable to your laptop. The LAN icon near the clock (this is called the system tray) should pop-up and notify you that you are connected to LAN with 100 mbps connection or something like that. This is good because you are now connected to the web. Try using your Mozilla or Internet explorer to check if your are connected to the web by opening any site.
  • If you have checked that you are connected, it's time to set that Internet Connection to shared. Go to start -> Control Panel -> Network Connections -> Local Area Connection. Right-click on Local Area Connection and select Properties. Select the Advanced tab and check Allow other network users to connect through this computer's internet connection. Just leave the other option below it unchecked. Now click Ok.



Note: You might need to configure wireless ad-hoc connection in your pc, if you need this, see this blog. Also, take note that if you are in using a connection with the router's IP Address configured to, then you might need to reconfigure your built-in wifi's IP address to something else, say to make this work. If not, you will get an error after the third step which will not complete the internet sharing process. If this is the case, see the blog I've recently mentioned and change the ip address.


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3 Responses to "Share Internet Connection Using your laptop's built-in WiFi"

Gororoba Says :
Tue Apr 22, 11:35:00 PM GMT+8

Thanks for you tutorial ! Regards, Felipe

Anonymous Says :
Wed Jul 30, 05:57:00 AM GMT+8

Nice tutorial. Better if you could explaing a bit about IP assignment too IMHO...

Anonymous Says :
Wed Jul 30, 05:59:00 AM GMT+8

A nice tutorial. Better if you could explain IP assignment a bit more...IMHO

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