Windows 10: Computer Never Enters Sleep Mode

I'm having another problem with my new laptop.I have Windows 10. When I first got the laptop, I was able to put it into sleep mode and it went fully to sleep. You could move the mouse, press any button, lift the lid... it didn't turn on. It was asleep until you pressed the power button then it rebooted back to where I was.Now it suddenly doesn't do that anymore. I didn't have a recent update nor do I have any available. I checked my device manager and everything is up to date. I created my own custom power plan and it didn't work. The problem is that the screen will turn off when I press "sle

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Computer wakes up seconds after it enters sleep mode.

just got home. Put my computer to sleep and it woke up in about 30 seconds. running the lastwake command still shows the unknown culprit. However, a whole list has appeared in event finder, what do you make of this? Seems to be something with the power supply if i had to take a guess

 

Sleep mode

Hi Adam,

For us to better assist with your issue on sleep mode, we'd like to ask a few questions.

• Have you made any updates to your computer before experiencing this issue?
• What troubleshooting steps have you done so far?

In the meantime, we suggest that you refer to this thread and follow the answer of Andre
Da Costa to troubleshoot the issue with sleep mode missing.

You can also refer to this article that was
created by Andre Da Costa to enable sleep mode.

Looking forward to you response.

 

Windows 8.1 does not enter Sleep mode

Since a few weeks my computer incorrectly enters Sleep mode from Start->Power menu.

A few weeks ago, in Sleep mode:

1. The power led was blinking
2. Monitor went black
3. After moving mouse monitor turned on and I needed to enter Windows password

Now in Sleep mode:

1. The power led is on all the time
2. Monitor goes black
3. After moving mouse I am back in Windows, not prompted for password

This is a fragment from my motherboard manual:

PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. The LED is on when the system is operating. The LED keeps blinking when the system is in S3 sleep state. The LED is off when the system is in S4 sleep state or powered off (S5).

This means that after pressing Sleep, Windows is not entering S3 sleep state (as it used before), because the led is not blinking.

This problem is not influenced by choosing (in Advanced Power Options) to allow
hybrid mode on or off nor by choosing to allow wake timers on or off. I tested all combinations and it's still not entering Sleep.

If after two hours of doing nothing on the computer I choose the Sleep mode and then after a minute move the mouse, then in the Event Viewer, in the summary of administrative events there is only one event in the "Last hour" column:
Microsoft-Windows-Kernel-Power with eventID 59 and it says that computer entered away mode.

In my Bios there are some settings which may influence the power behavior. They didn't change since long time and I think they are ok:





Is there any way to help figure out why the computer doesn't enter S3 mode anymore? And how to fix it?