Solved Can't disable Selective suspend for network adapter

Hi! I'm developing long run app on Windows 11 laptop. I want to avoid power save for network adapter. So I've tried following steps but still power save seems not to be disabled.

1. Uncheck "Allow the computer to turn off this device to save power" option
Like step 8 in this post, I unchecked it. But still power seems to be saved in 2-3 hours.

2. Disable-NetAdapterPowerManagement command
I've try this command and confirm status by Get-NetAdapterPowerManagement. The network adapter on USB-LAN adapter is changed to disable but the Realtek's network adapter doesn't change to disable. (Please find an attached image.)
How can I disable it?
Which parameter should modify to run network adapter without saving power?

Hello and welcome to forums!

YIzumi said:

Like step 8 in this post, I unchecked it. But still power seems to be saved in 2-3 hours.

Click to expand...

How do you know? does the checkbox enable itself again somehow?

YIzumi said:

but the Realtek's network adapter doesn't change to disable.

Click to expand...

I understand from your screenshot that in device manager it says disabled but in PowerShell it says otherwise right?

Power management is a feature controlled by driver, are you using latest driver from mobo site for your NIC?

YIzumi said:

he network adapter on USB-LAN adapter

Click to expand...

If this is a USB plugged in device, you may also need to adjust USB power Management settings in Device Manager.