Explanation/Reference:
Over the last 10 years 802.11 technology has made remarkable strides -- getting faster, stronger and more scalable. But one problem still haunts Wi-Fi: reliability.
Nothing is more frustrating for network managers than users complaining about flaky Wi-Fi performance, spotty coverage and dropped connections. Dealing with a Wi-Fi environment that you can't see and that is constantly changing is the problem. And radio frequency interference is the culprit.