Today use of computer technology is in more demand than earlier so there is an increase in the number of computer peripherals and its accessories. The computer wireless network is on the rise today. Basically, wireless networking is the ability to link multiple computer systems in a household together without any wires. It is based on a serial standard of IEEE 802.11. Wi-Fi works with no physical wired connection between sender and receiver by using radio frequency technology. Though Wi-Fi is very advantageous and a powerful technology, it is also having some problems during the transmission of the data for e.g., interference with the household devices like microwave. This paper discusses the security measures to be provided, architecture and design for Wi-Fi technologies.