Insufficient permissions. Check if the Remote management policy exists for the workstation/user on target workstation and is enabled.
Source: Remote Management Console
Severity: Important
Possible Cause: The Remote Management security settings of the Workstation object for the managed workstation, and User object for the user logged into the managed workstation do not allow the requested operation.
Possible Cause: There is not Remote Management Policy object associated with the managed workstation and the user logged into the managed workstation.
Action: See Setting Up the Remote Management Policy.