My Oracle Support Banner

DBCA Gives an ORA-12523 After Entering the Password for SYS for the ASM Instance (Doc ID 738462.1)

Last updated on DECEMBER 21, 2019

Applies to:

Oracle Database Configuration Assistant - Version to [Release 10.2 to 11.1]
Information in this document applies to any platform.
***Checked for relevance on 21-Jan-2011***


After entering the SYS password for the ASM instance under the "ASM Credentials" pop-up and clicking "OK", DBCA gives the following error via a pop-up: 

"Error when connecting to ASM instance on local node: Listener
refused the connection with the following error:
ORA-12523, TNS:listener could not find instance appropriate
for the client connection
The Connection descriptor used by the client was:


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.