ORA-28040: No matching authentication protocol error
ORA-28040: No matching authentication protocol error :- How to resolve ORA-28040 error. After upgrading Oracle database from 11g to 12c or higher version if you facing the same error then follow below steps. SQLNET parameters ALLOWED_LOGON_VERSION_CLIENT & ALLOWED_LOGON_VERSION_SERVER issue in Oracle 12c. Set the value to the minimum authentication protocol allowed while making connection to … Read more