How to fix the Oracle error TNS-12564: TNS:connection refused?

In this post, you’ll learn more about the Oracle ErrorTNS-12564: TNS:connection refused with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-12564: TNS:connection refused

Reason for the Error TNS-12564: TNS:connection refused

Cause: The connect request was denied by the remote user (or TNS software).

How to fix the Error TNS-12564: TNS:connection refused ?

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

Action: Not normally visible to the user. For further details, turn on tracing and reexecute the operation.