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We should turn off fast startup in control panel before WOL test, is it normal behavior?
Answer accepted by question author
It is best to disable Fast Start-up before performing a Wake on LAN test to ensure correct results.
You can then re-enable Fast Start-up after the test, but it is not really necessary if you are experiencing problems with Windows startup or problems with Windows not shutting down correctly.
Do you recommend that the fast startup need to be disabled in control panel
Yes, I do recommend it is best to disable Fast Start-up in the old Control Panel using this process.
Open the old Control Panel.
At the top of the old Control Panel, set view to icons
Open Power Options
On the left, click 'Choose what the power buttons do'
At the top right, click 'Change settings that are currently unavailable'
Under 'Shutdown settings' disable 'Turn on fast startup'
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How about Windows 11, is it same behavior?
AI answer
Yes, disabling Fast Startup before a Wake-on-LAN (WOL) test is expected and often required behavior on Windows 10.
In Windows 10, the default shutdown behavior is hybrid shutdown (Fast Startup), which puts the system into an S4 hybrid state and all devices (including the network adapter) into the D3 power state. In this state, WOL from shutdown is not supported, and network adapters are explicitly not armed for WOL. As a result, WOL packets will not wake the system after a normal shutdown when Fast Startup is enabled.
WOL is only supported from:
Therefore, for reliable WOL testing from a powered-off state, Fast Startup should be turned off in Control Panel so that shutdown becomes a true S5 (or non-hybrid S4) scenario where firmware/hardware may arm the NIC for wake, or WOL should be tested from Sleep/Hibernate instead of Shutdown.
References:
