Use the home wires to replace the cable, without specially laying the network cable can let the family in every room of the computer to form a LAN.
If you need to surf the Internet, you must also have a network to connect you to the Internet, that is, you need to find telecommunications or netcom services such as service providers to install broadband, also need broadband Internet access. Mainly as a broadband or wireless network of a supplement.
At this stage, the power grid card can do is to use the already have the wire network to replace the network that may need to be newly laid up.
However, the Power line Ethernet adapter must also be used in the same meter. A power line loop must be formed. The network transfer can be completed.