Mac wakes from sleep by itself.

Discussion in 'macOS' started by shawnperson, Aug 21, 2010.

  1. shawnperson macrumors newbie

    Apr 11, 2010
    I see my screen popping on for no reason staying on for 5 minuets or so then going back to sleep. Is this normal? I don't recall it doing this before but I have added an old p.c. to my network and got an iPad. Don't know if ether of those things have any relevance but like i said, I don't remember it happening before.
    From what I understand, to get spyware or malware on the computer I need to instal it. But I could be wrong. I have an iMac running 10.6.4. Thanks for any help.
  2. maflynn Moderator


    Staff Member

    May 3, 2009
    Mine wakes up and stays away, I've given up figuring out why.
  3. CortexRock macrumors 6502

    Dec 3, 2006
    Canterbury, England
    This could be because you've got 'Wake for Ethernet network access' enabled under System Preferences > Energy Saver.

    Your machine will wake up occasionally to ensure it's available to other devices on the network, like your PC and iPad.

    Or it could be if you have Bluetooth keyboard / mouse, which I got around by switching off the ability to wake the Mac with either.

    Hope that helps.
  4. shawnperson thread starter macrumors newbie

    Apr 11, 2010
  5. MonkeyET macrumors 6502

    Aug 7, 2009
    Coachella, CA
    I have had a similar issue lately. I have found it to be from my firewire connected Hard Drive. It is on a energy saving power strip that turns off the drive when my iMac goes to sleep. It often takes a few seconds for the drive to shut down. If it takes too long it wakes the computer from Sleep.

    I have also changed hard drives so this is most likely the case. Thinking of getting one of those iomega drives that are the same size as my Airport Extreme and hooking it to that via USB so I can backup my iMac and my MBP.

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