In most cases, an administrator cannot (in the LMI) delete entities that are in use (referenced in objects that are potentially used in NAP rules). It has been discovered that an administrator can delete remote directory servers, even if they are used in an identity object or a passive authentication object. This leaves the object without a server; and when the administrator next tries to deploy the policy, deployment fails and all changes are rolled back.
Resolving the problem
This is a known defect for IBM Security Network Protection versions earlier than 5.3.0. The defect is fixed in version 5.3.0.
Administrators must take caution when deleting remote directory servers and ensure that the server is not referenced by any objects.
If the above information does not resolve your issue, please contact IBM Security Systems Customer Support.