"Deny access to this computer from the network" cause FAC unable to bind admin account

[kwcheng__FTNT]

Hi team

Was anyone aware that the "Deny access to this computer from the network" option will cause the FAC to fail to bind the admin account for LDAP polling (prompted error 52e)?

For more information regarding this setting, you can refer to the following Microsoft link:

https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protec...

Log details screen-shot :

>> This issue is resolved once that option is disabled.

>> Hope anyone can provide some insights.

Regards

Patrick

FortiAuthenticator 

[pminarik]

Hi,

That Microsoft article you linked makes it very clear that this option is a "danger zone" and you should be very carefull with it.

Anyway, this should not be a surprise. Event Log polling for FSSO needs to read the DC's event log, and for that it must authenticate first, using network logon. And similar for other functions that need to talk to a DC.