It is quite easy to build a wireless network these days. Most broadband service
providers throw in a free wireless router with installation. All you need is a
wireless network adapter in your computer. If you have a late-model computer,
especially a laptop, it probably has wireless networking already built in. If not,
just stick in a USB wireless network adapter and you are on your way. While they are
easy to install, wireless networks often have performance problems.
http://www.pcmech.com/article/how-to...king-problems/