I think I've tried all possible power modes (S0-S5), and WOL works for me in all of them... except when I use the Windows 10 "Fast startup" feature.
Supossedly this feature puts the system into S4 (hibernation), but it doesn't seem to be the case. Or at least, not exactly. I can WOL my system fine from a regular hibernation event.
Is there a trick to getting Windows 10 to play nice with the WOL feature while keeping the "Fast startup" option turned on?
PS. My current motherboard is an MSI B250 Mortar (latest BIOS at the time of writing). However, I've noticed identical behaviour on other systems with other motherboards.