ORA-12523 or ORA-12541 connecting remote client to 12.2 Database
(Doc ID 2320190.1)
Last updated on FEBRUARY 12, 2020
Applies to:Oracle Net Services - Version 18.104.22.168 and later
Information in this document applies to any platform.
SQL*Plus connections from a remote 12.2 Client to 12.2 Database fail:
ORA-12523: TNS:listener could not find instance appropriate for the client connection
Local connections through the same listener work.
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