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Knowledge Base - Article

000017393
 SSO Agent does not support LDAPS on port 636

Products: Firebox & XTM
Operating System: 12.5.x
Issue Status: Open
Tracking ID: FBX-19654
Status: Open
Resolved In:

The SSO Agent cannot communicate properly on port 636. This error message appears:

DN (User) is not valid.

Configure LDAPS communications on port 389.

For more information, see this Microsoft article: https://support.microsoft.com/en-us/help/4546509/frequently-asked-questions-about-changes-to-ldap.