So nothing changes when you have the switch on and you use the Fn+F2 key combination. This might indicate there is a problem with the wireless card. If that is the case and you are not comfortable opening up your laptop to replace it then you might want to consider a wireless dongle like this one - http://www.newegg.com/Product/Product.aspx?Item=N82E16833315091
(2 year warranty) or this one - http://www.newegg.com/Product/Product.aspx?Item=N82E16833162037
(3 year warranty). There are more wireless USB adapter options and a search of Amazon or Newegg or TigerDirect will help you find one.