If it is is 'in' hibernation mode and won't come out, you need to cut the power. Then I would suggest, when you turn it on again, you go into "Control Panel", "Power Options". Then click "Change plan settings", net to whatever plan you are using, and on the next screen click "Change advanced power settings". From here check everything, not just what you are assuming will resolve it, and make all necessary changes. Be sure to save your changes when you are done by clicking "Apply" and then "OK".