How to fix the Oracle error TNS-01197: Listener failed to create the end point?

In this post, you’ll learn more about the Oracle ErrorTNS-01197: Listener failed to create the end point with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-01197: Listener failed to create the end point

Reason for the Error TNS-01197: Listener failed to create the end point

Cause: Internal error. Unable to get subnet mask for the ip address.

How to fix the Error TNS-01197: Listener failed to create the end point ?

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

Action: OS failure. Turn on tracing for further details