We need to wake-up workstations for several reasons, and notice swe could not get a lab of IBMs to startup. However, if we turn these machines on manually and then turn them off again, they seem to respond to remote WOL. If we leave them for a while they stop responding to WOL. We thought maybe some power management activity was happening that left the NICs or other components unresponsive while PCs were running, which then continued into a subsequent shutdown, but we could not find any power management settings that would cause this. Any Ideas?