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All replies
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Helpful answers
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Oct 20, 2014 9:09 AM in response to James Brustby GaryKing,I've got the exact same problem as you. My Mac wakes from sleep every two hours since upgrading to Yosemite. And I've got the same reason given in Console.
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Oct 20, 2014 6:24 PM in response to GaryKingby vegeta777,Same/similar issue.
Oct 20 16:29:39 kernel[0] <Notice>: Wake reason: RTC (Alarm)
Oct 20 16:29:39 kernel[0] <Notice>: AppleCamIn::systemWakeCall - messageType = 0xE0000340
Oct 20 16:29:39 kernel[0] <Notice>: AppleThunderboltNHIType2::prePCIWake - power up complete - took 1 us
Oct 20 16:29:43 kernel[0] <Notice>: AppleThunderboltGenericHAL::earlyWake - complete - took 4358 milliseconds
Oct 20 16:29:44 kernel[0] <Notice>: AppleCamIn::handleWakeEvent_gated
Oct 20 16:30:04 kernel[0] <Notice>: ARPT: 3331.330078: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
Oct 20 16:30:04 kernel[0] <Notice>: AppleCamIn::systemWakeCall - messageType = 0xE0000340
Oct 20 16:30:08 kernel[0] <Notice>: AppleCamIn::handleWakeEvent_gated
Oct 20 16:30:51 kernel[0] <Notice>: AppleCamIn::systemWakeCall - messageType = 0xE0000340
Oct 20 16:30:51 kernel[0] <Notice>: AppleBCM5701Ethernet [en3]: 0 0 memWrInd fBJP_Wakeup_Timer
Oct 20 16:30:53 kernel[0] <Notice>: AppleCamIn::systemWakeCall - messageType = 0xE0000340
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Oct 21, 2014 10:11 PM in response to James Brustby mediahound,Same here. MacPro early 2008.
This only started after upgrading to Yosemite.
Apple, please fix!
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Oct 22, 2014 9:34 AM in response to James Brustby rpaloalto,Yes I get the same thing on my 2008 mac pro. It wakes from sleep about every 2 hours. It does some thinking, then goes back to sleep. Probably not a issue with a macbook or imac. But these older mac pro's make a **** of a racket firing up all 5+ fans at 3am:(
I did a fresh install on a new hdd. No other software installed. All sharing options, including wake for ethernet is turned off.
I'll bee booting of the mavericks drive for a few more months until Apple solves this.
Googling this issue, gets plenty of results. It's pretty widespread. I'm surprised Apple did not catch this one during testing.
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Oct 22, 2014 9:40 AM in response to James Brustby seduc,see:
System Preferences > Energy Saver > Enable Power Nap
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Oct 22, 2014 11:02 AM in response to seducby mediahound,My model MacPro doesn't support Power Nap so that doesn't even show in Energy Saver.
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Oct 22, 2014 11:04 AM in response to mediahoundby GaryKing,Power Nap is not the problem anyway. I have it off on my Mini, as do a lot of other people. It's almost definitely a bug, based on the multiple threads about it. It's specific to Yosemite. I'm just hoping it gets fixed soon.
There are some quick fixes for it that require changes in the Terminal, or plist files, but I'm weary of doing those. I'm willing to wait for an official fix; hopefully one arrives within a week or two.
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Oct 22, 2014 11:18 AM in response to GaryKingby Matthew Wilson5,Same here on an 2009 Mac Pro even with everything switched off in energy saver and no applications running.
Others have even tried clean installs to solve it but it persists so it seems to be an OS X bug unless this is now considered normal behaviour.
It is related to the new discoveryd process as it is possible to stop it by editing a plist (see here http://ispire.me/fix-yosemite-rtc-alarm-wakeup-issue/) however this causes other problems so we have to hope an official fix comes soon....
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Oct 22, 2014 11:27 AM in response to Matthew Wilson5by mediahound,I hope Apple is listening and comes out with a fix for this quickly in the form of a Yosemite 10.10.1 update or something.
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Oct 22, 2014 11:48 AM in response to James Brustby James Brust,As GaryKing said, there are some stated fixes out there that require Terminal commands.I found this one on several sites and copied (I now can't find the original sites to give a link unfortunately). A number of people said it worked perfectly. But I haven't done it because I too am leery of using commands where I don't understand exactly what they are doing. If anyone wants to try this & report back that would be great. Here's the supposed fix which disables discoveryd and enables mDNSResponder (I don't pretend to understand those are!)
Disable discoveryd:
sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.discoveryd.plist
Enable mDNSResponder:
sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist
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Oct 22, 2014 2:10 PM in response to seducby mediahound,As mentioned above 'Wake for network access' is unchecked for me and other experiencing the issue.
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Oct 22, 2014 2:14 PM in response to mediahoundby seduc,You coul'd test if it's an internal problem or one with the network by turning off your router.