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Remote Client Connections Fail with ORA-12545 TNS: Host or Object Does not Exist (Doc ID 291175.1)

Last updated on FEBRUARY 12, 2023

Applies to:

Oracle Net Services - Version to [Release 9.2 to 19.0]
Oracle Database - Enterprise Edition - Version to [Release 19]
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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