How to fix the Oracle error NNF-03004: DNS Class mismatch (string)?

In this post, you’ll learn more about the Oracle ErrorNNF-03004: DNS Class mismatch (string) with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNF-03004: DNS Class mismatch (string)

Reason for the Error NNF-03004: DNS Class mismatch (string)

Cause: The query response packet returned a class different from the ones expected by the interface.

How to fix the Error NNF-03004: DNS Class mismatch (string) ?

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

Action: Verify that the error is generated by the BIND functions on this platform. Notify Worldwide Customer Support of the error.