Sleep Wake Failure with High Sierra 10.13.2

Thanks. I have no idea if this is the problem but it is much more info than anyone from Apple has come up with. I will forward it to the 4th senior advisor that has been in contact with me and see if he can forward it to the engineers and maybe they can finally fix this highly annoying and time wasting problem. Just curious, are you an engineer?

this makes sense. basically you reduce the workload to the minimum before entering the sleep mode. So that when wake up, it recovers to the minimum workload state so that it doesn't cause high electrical current demand that cause vmin issue. Other than wifi, turn off everything that can be turned off before enter sleep mode would help a better chance to wake up successfully.

Thank you, tingdong. Your 'voltage drop' hypothesis, makes a lot of sense, compared to the other 'broad brush' standard procedures, suggested by contributors, probably influenced by the apple support staff approach and can be tested (to some extend). Whether you have an engineering background or not, the explanation you propose sounds like solid engineering thinking. I shall be testing and sharing.

Yesterday evening, I turned off WiFi on my MacBook Air, and unplugged an USB key I keep connected to the MBA.

Selected sleep from the apple menu, and then I close the lid.

This morning I opened the lid, the "apple" light on the back turned on, but I was welcomed by a black screen (not totally black... I would say a low luminescence, screen less "dark" than when turned off). Nothing helped: close/open the lid, type password blindly, touch the power button, etc. Only way to get out, a forced restard, pushing the power button.

Once rebooted, I did not get the "kernel panic" screen, but the login page (I have automatic login on).

It sounded like an interesting hypothesis, but at list on my system, does not appear to be the cause.

PS: over the weekend I did a reinstall of High Sierra 10.13.3 + recent update.

I'm having the same problem with High Sierra 10.13.3, but it's been happening even before I updated this last version. It's extremely annoying and happens several times a day. This is happening on my iMac.

My iMac has been having the Sleep Wake failure and restarting itself since I installed HS in November. I installed the 10.13.3 Supplemental update on 02/22 and it did not help at all. I tried the new update for 3 days and had multiple gray screen wake ups and restarts. The only thing that will keep my iMac from restarting once or twice a day is to Enable Power nap. I turned PN back on 36 hours ago and have not had a gray screen or SW failure, or restart (yet). If anyone else has a positive result by enabling PN please let me know. I am working with my 6th or 7th advisor now and he supposedly is passing on this information to the engineering department. Yesterday he told me that the engineers are aware of the problem and are trying to fix it thru an OS update. Unfortunately I have been told that by other advisors since December. I just hope they get it figured out soon this failure has wasted a lot of time for all of us.

I forgot to mention that if you have not called tech support about have a Sleep Wake Failure please do so. Even though they can not fix it Apple will not make it a high priority until enough people let them know it is a problem. Thanks.

Did you ever resolve the problem? I foolishly "upgraded" to High Sierra and now my beautiful (and expensive) iMac runs like crap, and the worst problem is the sleep wake failure. They just had an upgrade to fix some bugs, but not this, it keeps happening, totally upset at Apple. It's not like I downloaded a pirated movie with a virus, I downloaded their recommended upgrade.

You're not alone, my Imac is doing the exact same thing since I upgraded with High Sierra. What a joke, my awesome computer now feels like garbage. They NEED to fix this ASAP. Nobody should have to have their expensive computer turned to crap when they "upgrade" at the manufacturers recommendation.

I don’t know if you have seen any of my previous posts because I’m not sure if replies that I make to other people are readable by all. I have a 21.5” late 2012 iMac and I started having the Sleep Wake Failure the day I “upgraded” to highly flawed High Sierra (Nov. 27, 2017) I am now working with my 9^th Apple advisor and have done all sort of testing on my machine. They have never found any problem with my hardware or any of my apps. They keep telling me that Apple is aware of the problem and the engineers are working on an iOS upgrade to fix the problem. There have been so many other serious defects in HS that I think the Wake Sleep Failure has been pushed to the end of the line. I have installed the 10.13.3 Supplemental and it still causes the failure. There are 2 things that I have found that help some. If I shut down my machine every night I get far fewer restarts and it takes less time for the computer to boot from a fresh turn on that it takes it to restart itself. The other thing that helps is I have enabled Power Nap in the System Preference, Energy Saver. I never used this setting before HS but when I have it checked I have fewer slow wakeups and self initiated restarts. Everyone who is experiencing the annoying Wake Sleep Failure needs to call support and complain otherwise they will never get it fixes. Good luck.

I have experienced a great reduction in the number of spontaneous restarts since turning Power Nap back on, however, it has not stopped them completely.

One thing I've noticed that may actually be hiding the problem for the casual user is that upon restart, the error dialogue is the rear-most pane, hidden by every other window that was open when the machine restarted. There is no indication (e.g., bouncing Dock icon) to tell the user that something happened that needs their attention. Unless one minimized all front-most windows, the error pane would likely never be noticed. I'm not sure when this behavior was introduced because I've rarely had a hard restart prior to upgrading to 10.13.x.

I have the same issue. was trying to entry time machine and restore to old OS. but it can not be restored anymore. all the backup I have in the time machine is trash now. this IOS definitely puts a stain on apple's brand. I am thinking about dumping this iMac and switch to my old wintel box.

Agreed!!!!! This is officially ridiculous! Every day I ask, "Is my nice fancy expensive iMac going to power itself off today?" Then when it does I have to ask, "Okay is it going to turn back on??" Not good.

Even with Power Nap turned on, the problem continues. Much less frequent than with it off. Roughly 105 hours since the last spontaneous restart.

Date/Time: 2018-02-27 22:13:14 -0600

OS Version: Mac OS X 10.13.3 (Build 17D102)

Architecture: x86_64h

Report Version: 26

Data Source: Stackshots

Event: Sleep Wake Failure

Duration: 0.10s

Steps: 9

Hardware model: iMac14,2

Active cpus: 4

Time Awake Since Boot: 380000s

I have taken screen shots of every sleep wake "Error Report" that I forwarded to Apple (yes, I have a lot of screen shots, but it captures the date and time to show frequency and shows when it started, which is right after I upgraded to HS). I've also taken screen shots of the same problems others are having as a result of HS. If the constant sleep wake error creates other problems (in addition to just being annoying), then I will have Apple replace my computer. Hopefully they do the right thing and fix it soon, but if not, I'm not going to just accept it. People don't accept cold fries at McDonald's, I'm definitely not going to accept this.