Error message received in Check Password:
The SELECT permission was denied on the object 'syslogins', database 'mssqlsystemresource', schema 'sys'.
Unable to connect to System_Name to perform the check. Verify the network address, port, and Functional Account settings for the system.
Directory accounts as functional accounts require Public or the functional account to have permissions to the syslogins object.
This can occur when the default Public SELECT permission has been removed due to company policy.