Imac wakes automatically from sleep mode
For some days now my Imac wakes up out of sleep mode sometime during the night (between 12:00 and 3:00 am.). I suspected that it could be some app updating, but I have very few third party apps and I have checked all of the apps installed and none are set to auto update. I think this problem started after the last iTunes update but cannot be sure. However this is very disturbing when the mac comes on at night and lights up the whole room. I am now forced to shut down every night instead of going into sleep mode.
I also checked the disk permissions and had those repaired.
I have no idea what else it could be. Any suggestions on how to solve this problem?
I also checked the disk permissions and had those repaired.
I have no idea what else it could be. Any suggestions on how to solve this problem?
Comments
How is it connected to the network? ... ethernet or WiFi ?
It is connected via WiFi
Obviously you have SOME thing running in the background that triggers the machine to wake up and do SOMEthing....
What is listed in your"startup" items in sys prefs?
Next would be to look through Activity monitor and see what processes are still going when you have all apps terminated. Hopefully something will stick out.
In the "startup items" there are a few apps listed but none are activated. That is if I looked in the right place. (system preferences-accounts-log in items)?
SOME app seems to have installed a "helper" that phones home or something.
Will update again tomorrow.
Update 2. OSX did not wake from sleep last night even though the auto update was on. The problem seems to have solved itself at least for the time being. What caused it in the first place remains unknown. One of the mysteries of our time. Perhaps we will never ever find out why!!