pc keeps waking itself up

rangor gubbins · 11 Jul 2023 at 11:07

Hello,
anyone got suggestions of why my PC keeps waking itself up from sleep. It seems to sporadically do it several times per day and night.
Can windows or software within be doing this?
I'll check the bios but i'm pretty sure i've already turned off all 'wake on' functions for network and mouse.

PaulM · 11 Jul 2023 at 11:11

If you run powercfg -lastwake in cmd (as admin) it'll give you some info as to what it thinks last woke the PC

rangor gubbins · 11 Jul 2023 at 11:13

ah brilliant. I'll try that and see what it says. Thanks

rangor gubbins · 11 Jul 2023 at 11:17

Code:

C:\WINDOWS\system32>powercfg -lastwake
Wake History Count - 1
Wake History [0]
  Wake Source Count - 1
  Wake Source [0]
    Type: Device
    Instance Path: PCI\VEN_8086&DEV_153B&SUBSYS_E0001458&REV_00\3&11583659&0&C8
    Friendly Name: Intel(R) Ethernet Connection I217-V
    Description: Intel(R) Ethernet Connection I217-V
    Manufacturer: Intel

Hmm, so it seems to be something network related? I'll definitely double check my bios settings, but i'm sure wake on lan is off.

rangor gubbins · 11 Jul 2023 at 11:20

looking at the help for powercfg, there is this:

Code:

/DEVICEDISABLEWAKE Disables a device from waking the system from a sleep
                     state.

presumably i can set the ethernet connection to not wake up the system?

PaulM · 11 Jul 2023 at 11:21

Not sure about the /DEVICEDISABLEWAKE option, last time I had the network device waking the PC I had to disable all the wake on LAN options inside the device properties -> power management for it to stop happening (disabling WOL in the BIOS didn't work for some reason)

rangor gubbins · 11 Jul 2023 at 11:27

I've changed the power settings for the intel ethernet device in 'device manager'. It was ticked to allow wake from sleep so i've unticked it. It seems that windows overrides the settings in the bios for WOL!

PaulM · 11 Jul 2023 at 11:33

If it still happens there's also usually a "Wake on Magic Packet" option in the advanced options for most intel network devices. Might be worth disabling that too, can't remember exactly which option worked for me but I remember it being a pain to stop!

rangor gubbins · 11 Jul 2023 at 11:51

well so far it hasn't woken up again. Fingers crossed that's done it. If not i'll look into the wake on magic packet thing.
Many thanks. This has been bugging me for months (or even years!).