How to fix the Oracle error TNS-12654: Authentication conversion failed?

In this post, you’ll learn more about the Oracle ErrorTNS-12654: Authentication conversion failed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-12654: Authentication conversion failed

Reason for the Error TNS-12654: Authentication conversion failed

Cause: The authentication service was unable to convert the credentials of a user from the format specific to the format into the ORACLE format.

How to fix the Error TNS-12654: Authentication conversion failed ?

You can fix this error in Oracle by following the below steps

Action: Enable tracing to determine the exact error.