[cifs-protocol] Windows 11 does not appear to apply group policies on logon when Hardened UNC paths are configured - TrackingID#2512040040010550

[Kacper]

Hello Obaid,

Thank you for taking over this issue. The issue occurs between a Windows 11
client and a Samba DC. I’ve tested the same scenario against a Windows DC,
and it works correctly there.
My testing was done with Windows 11 (24H2, OS version 26100.7171) and Samba
4.21.10. I’ve uploaded the network trace, the event log entry, and the auth
trace.
Manually running gpupdate /force after the user logs on works without any
issues.

I would like to understand why Windows fails to apply GPOs during logon when
Hardened UNC Paths are configured and the domain controller is Samba.

Regards,
Kacper

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