It will connect ok but at irregular intervals it will disconnect and my laptop will not be able to see any of the routers within range. There is a small switch on the front right of my net book that controls my wifi on/off. after being disconnected I am unable to control the wifi switch and although the light still indicates that wifi is enabled I can't find any routers which were there before. After shutting down my net book and restarting it twice it works again for a while then same thing happens again. It's really frustrating. I have updated drivers and checked as much as I can. My knowledge is not great around computing. Any help you can give me would be great.