I have an Oracle database Listener that requires Oracle Advanced Encryption (OAE) from the client. This works when using the Oracle 12c Drivers and the SQLNET.ORA file with the appropriate encryption settings, but not from your Oracle SQL V2 sensor. I get an "ORA-12537: Network Session: End of file" error message from the sensor.
Your KB https://kb.paessler.com/en/topic/52803-how-do-prtg-sensors-connect-to-oracle-databases pointed to dotConnect for Oracle—Using Direct Mode which alluded to supporting OAE if certain settings were set, but it didn't show where in PRTG one could do that.
Is there a settings file/registry setting that PRTG users can access to turn on the appropriate OAE settings? If not, is there a way to have the sensor use OCI (assuming I install the Oracle 12c Drivers on the PRTG Windows box?