best response confirmed by AndreBaker (New Contributor)
Solution

@AndreBaker The sensor log always get stuck on the line with "PcapLibraryHelper Verify" ?
What happens if you kill the sensor process from task manager? does it restart the sequence and gets stuck again on the exact same line ?

If yes, most likely Npcap was installed on the machine with /admin_only option, and we don’t support it.
uninstall npcap, and reinstall with the supported attributes.
https://docs.microsoft.com/en-us/defender-for-identity/technical-faq#how-do-i-download-and-install-t...