Same problem with a Samsung np530u3c. Samsung says to use an older driver than intel says to and I still have the problem. I'll try the latest intel driver, against the suggestion of the laptop manufacturer and see if it helps. Sadly, it usually comes back with network, but one in five times or so, no wireless network adapters appear on coming out of sleep or up after a dead battery. "Sometimes" problems are so much harder to troubleshoot.
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