Windows 10: "Power Button" wakes PC from sleep...or does it?

I have this recurring problem:

About 4 weeks ago my desktop PC would wake up immediately after i set it to sleep.
powercfg -lastwake query in cmd prompt returned: Type: Fixed feature, Power Button

I googled this problem and also searched here on the forums and some people seem to be able to fix it by disabling wake timers in power managment - this did not work for me.

What worked for me was disabling "wake on pattern match" for the network adapter in device manager.
After that, the PC would stay asleep until i woke it with either mouse or keyboard.
To test this, i re-enabled "wake on pattern match" , to see if it would prevent the PC from staying asleep, but weirdly enough the PC would stay asleep, until i wake it up by keyboard/mouse. So i left the "wake on pattern match" enabled.
Now after about 4 weeks the problem is back.

Normally i would be happy to prevent my network adapter to wake the PC, as i don't really use that feature but i am worried that something else is wrong, e.g. a faulty power button. My PC is relatively new and still under warranty so i could get the button fixed if it's broken.

Since disabling "wake on pattern" seems to "solve" the problem, it does not seem to be a problem with my Power Button.
But why would powercfg -lastwake indicate that Power Button is waking up my PC then?

:)

 

PC Won't go to sleep - Fixed Feature Power Button

Hi recently my laptop won't go to sleep, after one second is back from sleep saying that the power button was the trigger for waking up.




I tried everything that I saw in similar post all over the forums.

1. All the drivers updated
2. Turn of all wake timers and allow device to wake up the computer from mouse, keyboard, Realtek PCIe Controller, Wireless AC.
3. Turn "wake computer" from UpdateOrchestrator in Task Scheduler
4. Run all the troubleshooters from windows
5. Reinstalled Windows latest build
6. Tried on older Windows build

Has anyone can suggest anything else ?
It drives me crazy , its suddenly happened and now a can't find any solution

 

Only the Power Button Wakes PC from Sleep - Laptop

• Open the Keyboard control panel item by typing keyboard into Start Menu.
• Click the Hardware tab, and then click Properties.
• Click the Change Settings button
  
  Note: This step requires Administrator access
• Click the Power Management tab, and then verify that the Allow this device to wake the computer is enabled.
• Click OK, and then click OK again.

 

Sleep / Wake Function, malfunctions after waking

Hi,

Issues that arise after waking up the PC from sleep mode might have been caused by a software conflict or system file corruption. For us to clarify the issue, we would like to ask these questions:

• What is the exact issue that you are experiencing?
• Did you notice any recent system changes prior to this issue?
• Have you encountered any error message?
• What troubleshooting steps have you done so far?

If you are having issues waking your PC from sleep, we suggest running the
Power troubleshooter as an initial troubleshooting. Kindly follow these steps:

• Click on Start.
• Type Troubleshoot, and then press Enter.
• Under Find and fix other problems, click on Power.
• Click on Run the troubleshooter button.
• Follow the onscreen guide.

We will wait for your response.