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iMac waking up from sleep  

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Howdy,

None of my most-knowledgeable geek friends have been able to help me with this problem.  Some time ago, I had a problem with my iMac waking up from sleep in the middle of the night, or other times when no one was using the computer.  I was able to solve the problem by unchecking the box that allowed for "wake up" from network activity.

Now, it is happening again (it seems, since updating to Catalina).  The box is unchecked appropriately, but the damn computer keeps waking up on its own.  I've tried unchecking start up programs, and disabling other third party programs one by one.

How can I look in the logs to see what may be causing the self-awakening?  Any ideas?

Thanks

Kenny in NJ

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