ORA-00609: could not attach to incoming connection ORA-12637: Packet receive failed

I upgraded an Oracle RAC database from 12c to 19c. After a while, I identified that some jobs were having problems running. Therefore, I investigated and found out about the new default feature on the 19c client database that requires tests if Out of Bound breaks are allowed. Thus. Follow below the steps to handle this: The first step was to check the alert.log, and the errors messages were as below: I have also checked traces to understand more about the error, and this is what looked like: From now,…