|Disable the Wake on LAN feature.|
Type in Device Manager into the start menu search box, and then browse down to “Network Adapters” and find your network adapter. In this case, mine is “Broadcom NetXtreme Gigabit Ethernet”.
Right-click it and choose Properties from the menu. In the resulting dialog, choose the Power Management tab.
Uncheck the box next to “Allow this device to wake the computer” to solve the problem. You’ll notice that there’s a warning about having the option enabled in the first place.