Explanation

Log Server is unable to access the directory service, and therefore cannot update user information and user-to-group mappings for reports.

This can happen if Log Server and User Service are on different sides of a firewall that is limiting their communication. To resolve this problem, configure the firewall to permit access over port 55815.

The default ports used for directory service communication are:

139 NetBIOS communication: Active Directory
389 LDAP communication: Active Directory, Novell eDirectory, Oracle (formerly Sun Java) Directory Server
636 SSL port: Novell eDirectory, Oracle (formerly Sun Java) Directory Server
3268 Active Directory
3269 SSL port: Active Directory