Hello- I am unable to get my Dell Latitude E6450S to disengage from "Airplane Mode" to regular Wi-Fi. It automatically goes into this mode at startup. I cannot turn it off in the settings interface, nor can I turn on the wi-fi mode, as it turns itself off automatically, back to the airplane mode setting. Dell does not provide any tech support as the computer is out of warranty. Any suggestions on how to override this? Thanks for any help!!