In Domino/BES 4.0.1, it meant you've logged onto a remote admin console with an administrative account that cannot be authenticated on the on BES.
For Exchange/BES this might be the reason..
RPC parameters for the user's server could not be retrieved.
This message indicates an internal error or a SQL database connectivity interruption. xxx56256;xxx56416; Check the connection to the database.
Check page 35 of the following link... http://www.blackberry.com/knowledgec...17371&vernum=2