13:56:24.260 CI and Relationship Loader for CA Service Desk Manager R17.0 grJDBCrdr1500 Unable to access database url(jdbc:oracle:thin:@oracleserver:1521:orcl) userid(system) reason(ORA-28040): No matching authentication protocol
CA Service Desk Manager 17.1 CA Service Desk Manager 17.0 CA Service Desk Manager 14.1
This actually implies that the authentication protocols used between client and server do not match. In Oracle 12c, the authentication protocol uses SHA-2 encryption algorithm by default, where older clients use SHA-1. So when an older client is used with defaults, the server will not accept the connection.