Remote Client Connections Fail with ORA-12545 TNS: Host or Object Does not Exist
(Doc ID 291175.1)
Last updated on JUNE 21, 2021
Applies to:Oracle Net Services - Version 18.104.22.168 to 22.214.171.124.0 [Release 9.2 to 18.1]
Information in this document applies to any platform.
Remote client connections are failing to connect via the listener. The error returned to the client is: ORA-12545: Connect failed because target host or object does not exist.
This error can be either persistent or intermittent depending upon the type of database installation.
This is likely a new installation of either the client or the database server.
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