I am having an issue connecting to an Oracle 12c database on the AWS cloud from an application using Devart ODAC.
According to the vendor the application is using direct mode which means ODAC connects to Oracle directly without using Oracle client
software. However, when I test the connection, I get the below error.
ORA-28040: No matching authentication protocol
I am able to successfully connect to this Oracle database using SQLNet and from Toad. This leads me to believe that this lies within the application, but the vendor does not agree. Can anyone help me resolve this?