I got this working on my XPS Studio 16 by doing the following: Step 1. Download drivers from intel for  Search:  Product family : Wireless Networking Product line: Intel® Centrino® Wi-Fi Products Product name: Intel® WiFi Link 5300 and Intel® WiFi Link 5100 products   Result: Intel® PROSet/Wireless Software and Drivers for Windows 7* I selected Windows 7 64 bit drivers (no Win 8 are listed) [URL]   Step 2:  Right click downloaded file and run click Properties > Compatibility Run in windows 7 compatibility mode (see screenshot) Step 3: Run driver installer, after this installed it worked for me for the first time - Good Luck   [IMAGE]
I recently upgraded to Windows 8 with my XPS 16.  I know the Intel R 5150 is not working right with Windows 8 just like everyone else I've seen post on various sites when they upgraded.  My concern is.. when is there gonna be an updated driver!? You would think if Windows was gonna make it available to upgrade your OS to 8 that they would have all this straitened out.  Now I have to get rid of 8 just so I can have WiFi! 
upgraded to windows 8 and now WiFi doesn't work XPS 16