How to fix the Oracle error TNS-12513: TNS:service handler found but it has registered for a different protocol?

In this post, you’ll learn more about the Oracle ErrorTNS-12513: TNS:service handler found but it has registered for a different protocol with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-12513: TNS:service handler found but it has registered for a different protocol

Reason for the Error TNS-12513: TNS:service handler found but it has registered for a different protocol

Cause: The dispatchers registered for this service are connected to the listener by way of a different network protocol than that of the client.

How to fix the Error TNS-12513: TNS:service handler found but it has registered for a different protocol ?

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

Action: Contact the DBA to register a dispatcher on your protocol.