Cause: Server failed to authenticate
itself to the Directory.
Action: Make sure the sqlnet.ora used is
pointing to the wallet with the right certificate.

Relared Errors:
ORA-28046:
Password change for SYS disallowed
ORA-28047:
database is not a member of any enterprise domain in OID
ORA-28100:
policy function schema string is invalid
ORA-28101:
policy already exists
ORA-28102:
policy does not exist
ORA-28103:
adding a policy to an object owned by SYS is not allowed
ORA-28104:
input value for string is not valid
ORA-28105:
cannot create security relevant column policy in an object
view
ORA-28106:
input value for argument #string is not valid
ORA-28107:
policy was disabled