This blog is helpful for those who have setup a Local Area Network (LAN) but can’t be able to share internet connection in network due to unknown reasons. Here you will not find any instruction on ‘How to setup a Local Area Network or LAN’.

In normal cases every PC connected in a network (LAN) can be used to share files as well as internet connections. That is if one PC in a network have internet connection, then all other PCs will be able to share internet facility. But this is not always happen. Your ISP (Internet Service Provider) will not always allow you to share your Broadband connection with your friends having a common network (LAN). They used a common trick to block your friends to use your internet connection. They (ISP personals) notes the physical address (this is like a serial number and this number is unique for every LAN Card) of your LAN Card from your pc on the very first day. They use software which verifies physical addresses and block others to connect to the internet.

Don’t worry. There is a trick to tackle ISP’s trick. You can easily change physical address of your LAN Card by using ‘MACAddressChanger’. You can search this software in google or can download from here.

Here is an example about how you can do that:

Let A, B & C are three different pc in a Local Area Network (LAN). Now A is connected to the internet through a broadband internet connection.  But B & C are blocked by the ISP when they want to connect to internet. The following steps may be taken:

1. Run ‘MACAddressChanger’ on A and copy the ‘MAC Address’ (‘MAC Address is the physical address of the LAN Card’).

2. Run ‘MACAddressChanger’ on B & C and paste the ‘MAC Address’ from ‘A’. then click on ‘Change MAC ID’.

3. Select ‘Obtain an IP address automatically’ in ‘Internet Protocol’.

4. Now  A, B & C have the same MAC Address/ physical address as well as common IP address and your ISP will no long be able to differentiate A, B & C.

Note: only problem in this system is that A, B & C will not be able to share files through network because of having same physical address + IP address.