I assume you've tried the ones mentioned, then, as your reply say nothing about that... nor does it clarify whether these PCs have ever not done this with Win 10/11.
Simple solution: a cover... or the position of the PCs.
There is no Power Management tab under any of the Network Adapter settings, and in the BIOS under Config ->Power, it seems to have something called "CPU Power Management" The slider currently says it's on. The description says
"Enables or disables the power saving feature that stops the microprocessor clock automatically when there are no system activities. Normally it is not necessary to change these settings"
The "Wake up on alarm" slider is disabled.
Under the Network Adapter Settings for the Intel Ethernet connection, I have a drop down menu that looks like this:
Both the "Wake from S0ix on Magic Packet" and the "Wake on Pattern Match" settings are enabled.
"Wake On Link" and "Wake on Magic Packet" are disabled.
I haven't changed anything.
In BIOS, go to Power ➙ Enhanced Power Saving Mode ➙ Enabled. Also, Power ➙ Automatic Power On ➙ Wake On Lan ➙ Disabled.
Both "wake from sleep on magic packet" and "wake on pattern match" should be *disabled*. Both are looking for special network packets and thus have to keep the ethernet chipset powered on.
Yes, it's for Lenovo. But I don't know which exact model your ThinkPad is, so I am only taking a wild guess. Enhanced Power Saving Mode = ErP compliance mode. If you can't find this feature, then I suggest that you just contact Lenovo about it, either directly by email or via their community forum website.
Now you learned something very important in that you can remote start your PC like remote starting a vehicle. In fact you can do this via an App on a smartphone.... and so can a hacker...
Well...
Anything connected to the internet is potentially vulnerable.
By turning off Wake On LAN, you have an extra layer of protection.
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