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Anyones elses 27 waking randomly from sleep?

C

C8XY

macrumors 6502
Original poster
May 11, 2008
356
32
:confused:

No attached USB devices, factory install of OS X with all the updates including firmware. Wireless keyboard up to date. Batteries nowhere near flat…

Wake for network access yes but it shouldn’t be an issue as my old iMac worked perfectly with this feature?
 
I had the same issue - and it didn't go away until I disabled the wake on lan option.
 
I had never put my 27" to sleep, but mine started doing this, too. Figured out it was Bluetooth pulling it out of sleep. Go into Bluetooth options, and then "Advanced," and make sure the checkbox is unchecked for allowing BT devices to wake the computer.
 
WilliamG said:
I had never put my 27" to sleep, but mine started doing this, too. Figured out it was Bluetooth pulling it out of sleep. Go into Bluetooth options, and then "Advanced," and make sure the checkbox is unchecked for allowing BT devices to wake the computer.
Click to expand...

OP is using a wireless (bluetooth) keyboard and mouse. Disabling this would not allow the keyboard or mouse to wake the computer (at least this is how it works on my MBP).
 
mikes63737 said:
OP is using a wireless (bluetooth) keyboard and mouse. Disabling this would not allow the keyboard or mouse to wake the computer (at least this is how it works on my MBP).
Click to expand...

You can still use the power button on the iMac to wake it up. With a MBP in clamshell mode it's a lot harder, for sure.
 
This happened to me a few times, and then I disabled the option to wake up for network access and enabled put HDD to sleep when possible.

Since them, I can't remember it ever waking up, or maybe I was just in deep sleep
 
Disabling the "Wake for Network Access" option in Energy Saver Preferences (System Preferences) should fix this problem.

If not, try a PRAM and SMC reset.
 
celticpride678 said:
Disabling the "Wake for Network Access" option in Energy Saver Preferences (System Preferences) should fix this problem.
Click to expand...

:( I like this option as I have multiple computers I can access the iMac without manually waking

celticpride678 said:
If not, try a PRAM and SMC reset.
Click to expand...

Just done this, will see if it solves the problem. If not I’ll disable the bluetooth wake option and use the power button to see if this solves it.

:apple:
 
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