Reliably wakes, sleeps, and shuts down my PC via LAN or WAN. Required a bit of jiggery-pokery to get things working behind my Airport Extreme (which does not support WoL via WAN), but thats not the apps problem.
One star off because I cant get the app to accept my SecureOn password, so Ive been running without SecureOn. Ive tried colons, periods, dashes, and nothing between bytes. Ive tried upper- and lower-case hex bytes. The app rejects them all.
Tom G Varik about WakeUp - The Wake on LAN tool