Wireless communication is one of the most preferred mode of communication today. It allows local area networks (LANs) to be setup without cabling. That can reduce associated costs of network connection. WiFi products are extensively available in the market. There are different brands of access points and user's network interfaces are able to inter-operate at a very basic service level. The WiFi LAN has a broad application nowadays. Because of the comfortable and quick installation people often replace old wired LANs with WiFi. Such connection allows you to move your machine around the place without losing the Internet or other network resources. Working on your laptop you can check your mail from anywhere in your home or office. The most common issues faced by wireless users are.