We have a strange issue where we cannot find a solution.
Our system was migrated to a new sever one month ago (Windows Server 2016 / Oracle 12.2.01). Everything went fine and DB and SAP were running smooth.
But last night, exactly at midnight a problem occured. At 00:00 the last redo log backup could run, at 00:15 the next one failed because it could not login "AS SYSDBA".
We checked this then and saw that this is not working for any user:
Error is always the same:
ORA-01017: invalid username/password; logon denied
We checked note 480266 but everything is fine:
We saw that there is no orapwd File, but as we understand sqlplus / as sysdba should work anyway localy on the server.
Any other idea what the problem could be?
Thans and best Regards