Hi, I'm having this issue too. My motherboard is from ASUS, model Sabertooth Z77.
What I've notice is when I try to change anything on NIC properties page, the dialog hangs, no error is presented and the only option I have is to kill the task on task manager.
So I chose the option to update only the drivers, without installing other Intel (useless..) features.
Now I can change the settings fine, but I need the WOL feature and the PC keeps waking up a few minutes after going to stand by.
I did a simple test and REMOVED the network cable (Cat6) and the PC woke up again... This way I can be sure there is nothing else on my network (ASUS RT66 router) sending any kind of signal the NIC could interpret as a wake up signal.
So definitely is an issue with the Intel driver, as I had uninstalled it and was using the default Windows 8 driver without issues. But from time to time the Windows Update updates the NIC driver again...
If I disable WOL the problem is "fixed", but I need WOL to turn my PC on remotely when needed.
Regards.