Did some googling for this problem and found this.
Would it have anything to do with your laptops wireless card hot key like it says here?
Kill switch must be turned off for wireless networking to work.
The last two lines were a worry, but Jacques Vuillemin suggested that Fn-F2 is the magic to turn off the Kill Switch. If this doesn’t work then modify the BIOS (F2 on boot) to disable the wireless hotley. The wireless load command worked for me after Fn-F2
Hope it helps.