Hi shaanhaider Welcome to the community, we appreciate you taking time in writing to us about your concerns with the computer. You have helped me eliminate couple of steps. I would like you to run though a few more steps to narrow down the issue. Kindly updte the Quickset application and test the FN+F2 function and let me know how it goes. Quickset download: [URL]    
Hi,  I have got a brand new Latitude 3440 with Windows 8 Pro two days back . The first thing I did, like always, was updating the drivers after start using the device. Later I have noticed that the WiFi toggle option using the Fn+F2 keys is not working.  I am able to turn on the wireless option manually using the Airplane Mode but the Fn+F2 key combination is not working. Tried to update the driver once again but nothing is working. Can anyone please help me about it? Thanks
Latitude 3440 Windows 8 Pro - F2 WiFi toggle option is not working