Hello anonymous user
As far as I can know, this is a known issue in WinPE versions 1607 and 1703
Windows PE Network/WinPE-Dot3Svc optional component doesn’t work in Windows 10 Version 1607 or Version 1703
https://support.microsoft.com/en-us/topic/windows-pe-network-winpe-dot3svc-optional-component-doesn-t-work-in-windows-10-version-1607-or-version-1703-8f392d99-c248-6148-39ab-6dc05fd49622
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