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Troubleshooting Guide for ORA-12541 TNS: No Listener (Doc ID 2059450.1)

Last updated on JANUARY 24, 2020

Applies to:

Oracle Net Services - Version 10.2.0.4 to 19.5.0.0.0 [Release 10.2 to 19]
Oracle Database - Enterprise Edition - Version 10.2.0.4 to 18.5.0.0.0 [Release 10.2 to 18]
Information in this document applies to any platform.
This document contains instructions for troubleshooting the ORA-12541 TNS: No listener error. It does not cover "failure to start" listener issues.

Purpose

 This document has been created to aid in  troubleshooting the ORA-12541 TNS: No Listener error.  Specifically when that error has been thrown at a remote client.

Troubleshooting Steps

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In this Document
Purpose
Troubleshooting Steps

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