I have NUC BOXNUC6CAYH and WOL does not work on it when NUC is turned off.
If it is in sleep mode, WOL works.
In bios I have:
Deep S4 / S5 turned off
Wake on LAN with S4 / S5 set to Power on - Normal Boot.
Thank you for contacting us regarding the Wake on Lan issues that you are experiencing, it will be more than pleasure to help you out with your NUC6CAYH.
In order to help you better and to try to replicate your issue I would like to gather more information about the configuration you have in the NUC. Please attach to this thread the .txt file the Intel System Support Utility will generate https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility
To attach a file, you must click •Use Advanced Editor" on the upper right hand corner of the response box, then the "attach" option will appear on the bottom right hand corner of the response box.
I hope to hear from you soon.
I was taking a look to your case and I was wondering if you have any other question or concern?
Please reply back through this thread, in case that you need more assistance