![]() I suspect it's just the new 10.13.4 update. I'm seeing this too but don't have any powered external drives connected. From /var/log/powermanagement in Console: 'Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=inactive' The above entries are followed about a minute later by: 'DarkWake from Normal Sleep [CDN] due to EC.WoL XGBE/Network' And then the cycle repeats. I have a USB mouse with an LED-illuminated middle button, and I noticed that it would turn on about two seconds after putting the system to sleep, then turn off about a minute later, then on again, ad infinitum. I hadn't tried placing my iMac Pro to sleep before the 10.13.4 update, but will have to continue powering it off at night. Three comments on the constantly waking from sleep problem with the iMac Pro. Open Energy Saver on Mac OS and uncheck Wake for Ethernet Network access and Enable Power Nap so the hackintosh doesn’t wake from sleep randomly to check for updates Step 7 – Better i3 Acceleration (Optional). How to enable Wake On LAN on a Mac. On the computer you want to wake up, under System Preferences > Poses 2 42 keygen music. Energy Saver, enable Wake for Network Access. Can't access this feature? If your Mac is part of a domain or a network, your domain administrator may have restricted some of the features and settings available on your MAC. (1) I have an iMac Pro 10-core, 128 GB RAM, 2TB SSD, Radeon Vega64 Pro (16 GB) that began repeatedly waking up after the 10.13.4 update. (2) After hours of trying to resolve this issue, I checked Console>Mac analytics to see what was going on that was initiating these wakeup sleep cycles and found that it was my ethernet network even though I did not have Wake for Network Access checked in Energy Preferences. I Googled the exact wake error found in console and dsicovered that many others were reporting this issue and the only solution was to disconnect the wired ethernet and use a wireless connection. When one does this the constant wakes from sleep cease immediately and sleep works perfectly on my iMac Pro. (3) the latest OS update (10.13.5) does NOT solve this problem. This problem has been submitted as a bug report to Apple by others at least two months ago (and by me) and Apple has done nothing to resolve the issue which leaves the 10 GB ethernet port on the iMac Pro useless if you ever want to put the computer to sleep. I urge those of you who have not done so to submit a bug report to Apple and hopefully one day Apple will decide that the iMac Pro is worth supporting and fix this issue which they themselves created in the 10.13.4 update. I tried reconnecting wired Ethernet after updating to 10.13.5 and my iMac Pro would never stay asleep until I disconnected the wired Ethernet and went to a wireless connection. Note that Traeton Garl1 also reported above that updating to 10.13.5 did not solve the problem for him. Unless you have external hard drives with activity lights or external raid arrays connected you may not realize that your iMac Pro has not gone to sleep because when you select sleep the screen does go dark but external HD’s just spin down and then 1-2 seconds later spin back up and repeat this behavior indefinitely while the display remains dark showing the iMac Pro has not remained asleep and Console clearly shows that wake from sleep is being initiated by the network even though ”wake for network acess” has not been checked. If updating resolved this for you, I am happy for you but it did not do so for me and at least one other person posting to this thread.
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