How to fix the Oracle error ORA-24911: Cannot start listener thread at specified port?

In this post, you’ll learn more about the Oracle ErrorORA-24911: Cannot start listener thread at specified port with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-24911: Cannot start listener thread at specified port

Reason for the Error ORA-24911: Cannot start listener thread at specified port

Thread already running at a different port.

How to fix the Error ORA-24911: Cannot start listener thread at specified port ?

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

Set the correct port in the environment handle or let the system choose the port.