17 R3, Killer 1535 WiFi not working

The wifi function of my Alienware 17 R3 (2015 model) with 6th gen core i7 (6700 HQ and killer 1535 wifi) is not working anymore. In the device manager, it says the device is not working. I am assuming that the wireless card must be bad. If so, what can I upgrade it with? Can I put a wifi 6 card?