Steam causes unwanted wake up (wake on lan / wol) of my PC from hibernation

[kakkabolle]

I have this issue for a long time now and believe I could find the cause:

My computer is only going to hibernation mode and doesn't shut down completly, so I can wake it up remotely by sending magic packets (e.g. from my media center. Sending wake on lan packets from my steam link is still not working by the way). But something was causing it to wake up randomly (lately: once about each hour). By using a tool that tells me which ip sends the magic pack I found that it is always 162.254.197.42 or 146.66.155.8 etc. which are listed as Valve Corporation. City, Frankfurt am Main or Vienna.

So I have disabled autostart of steam client in Windows:
Not a single wake up over two nights since!!!

Anyone else with this issue? It's probably due to some steam auto-updates?
How can I fix this, without disabling steam nor steam client beta function?


thx

[Bad 💀 Motha]

It's just common sense to never let Steam Client be in OS Startup.
And it shouldn't do this anyways; Hibernation Mode = turns the PC completely off. This is not a sleep mode where power stays on. Everything shuts off power-wise, like a normal shutdown. Hibernation mode = everything from RAM gets saved to a temp file; on next power on / boot up the OS loader sees active info in the Hibernation sys temp file; then loads back up your OS and whatever was actively running in RAM based around this.

Check your BIOS for any power management, wake settings; and disable them all.
And in BIOS, for power failure, set this to "Stay Off"

[kakkabolle]

hi, thx for your reply. I really like to disable steam client, but I need it running for my steam link to play my games. Same is for disabling the wol features in my bios. I still want to wake my computer, but only when I need it not when steam sends an magic packet... Why is this happening any ways?

[somnolentsurfer]

Did you ever get anywhere solving this? I'm having a similar issue, but the packets seem to be originating from another machine on my network also running Steam, and transmitted on a port used for in home streaming. I don't want to just close Steam on all my devices. I have a living room machine I ideally want to boot into big picture mode, and a work MacBook on which I want to be logged into chat. But I don't want them waking each other when I'm only using one.