I'm trying to set up a simple way to wake my iMac from sleep over the internet. I've come across http://www.rshut.com/products/wol i've set up everything and it works...well...sort of: The iMac is connected to an airport extreme base station. This method works perfectly fine while testing; I put my mac to sleep, then remote wake it with my macbook from a remote location. The problem comes when my iMac has been in sleep mode for a long time. If I let my iMac sleep overnight and then attempt to wake it remotely, it will not work. I can manually wake it and then try it again and it works. I suspect it has something to do with my airport base station. Any ideas as to what the problem might be? I've set the DHCP to lease IP addresses for 4 days with no luck. I would appreciate any information that would allow me to use the website above when my iMac is sleeping for a long time. Thank you.