The error message has been recorded (in stderr.log in default configurations )." However, if a user has an active session then no errors are reported wehn the connection is lost.
DMPOOL 2011/05/05 08:51:40 E P5144 T4744 rpc_StartServer_srv2(00000458): Session activation failed for user dmsys, connecting to @DIMVDI with DMDEPLOYSRV from localhost (6) ... We found these were spawned by this invalid entry in the %DM_ROOT%/dfs/deploy_ config .dat: ... By default the deploy_ config .dat should not include any settings.