How to fix the Oracle error TNS-01172: Listener has shut down since all listen addresses have been deallocated?

In this post, you’ll learn more about the Oracle ErrorTNS-01172: Listener has shut down since all listen addresses have been deallocated with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-01172: Listener has shut down since all listen addresses have been deallocated

Reason for the Error TNS-01172: Listener has shut down since all listen addresses have been deallocated

Cause: The event detection mechanism broke and caused all listen addresses to be removed.

How to fix the Error TNS-01172: Listener has shut down since all listen addresses have been deallocated ?

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

Action: Error 1170 has occured and caused all the listen addresses to be deallocated. Since all the listen addresses have been removed, no more connections can be established to this listener so it shuts itself down. This error is not normally visible to the user. For further details, turn on tracing and reexecute the operation. If error persists, contact Oracle Customer Support.