by hiram » Tue Sep 01, 2009 4:45 pm
Here are some details on what you should check to fix Windows 7 sleep from waking up automatically.
It may be due to your network card. You have to prevent your Network Card to wake your Windows 7 up from its sleep
My computer->Properties-->Device manager-->Rt click on your network card -->select properties--> Power Management tab-->Uncheck the option “allow this device to wake up the computer”