I think that if your Wake on Lan were working, the worst thing would be that it would fire up machines that were down, then just shut them down. I was looking at the selectable conditions for an event, but couldn't find one regarding if the client were active or "powered on". Maybe someone could suggest something else. I tend to run a power shutdown event about 4:30 pm every Friday on lab machines to make sure they are shut down for the weekend. DS 6.9 (build 365).