*** Hi,

It probably wakes up because of the network connection. Worse if you have a server turned on (apache, windows sharing, ssh, FTP...). It receives a packet and responds to it.

I prefer to leave the Mac's on. We use them all the time and putting them on/off would not be good for the machines. You might want to decide if you really need to put it to sleep...

Cheers,
Zoran.

"We are born naked, wet, and hungry. Then things got worse."


Le 19 déc. 2005, à 08:39, Tom Burke a écrit :

What could make a sleeping Mac wake up on its own?

The Mac in question is a recently-bought Mini, running 10.4.3. It's located in a home-office I have. At various times I put it to sleep, usually by selecting Apple - Sleep. And indeed it does go to sleep, and the screen blanks. But on return to the office perhaps 20 minutes later I find that it is awake. What could be causing it to wake up?

Environment: there is a printer attached, and pretty much permanently switched on - this is an HP 8450. Wifi is turned off; instead, there is a permanent ethernet connection. Bluetooth is not enabled. Keyboard & mouse are USB.

When I put it to sleep I generally leave Safari & Mail running, but minimised (ie, in the Dock). Most times these (+ Finder) will be the only visible programs running.

Tom

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