Retrieving the Security Group members failed

User action:
During the viewing or modifying of properties, or the creating or cloning of a DCE Security group, the list of DCE accounts in the cell is retrieved.

Meaning:
The list of DCE accounts was not retrieved from the registry.

Corrective action:
You may not have the correct authorization to read from the registry. Perform a DCE login operation using an account that has sufficient privileges to read DCE objects, and retry the operation.