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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 JUNE 21, 2021

Applies to:

Oracle Net Services - Version 9.2.0.8 to 19.4.0.0.0 [Release 9.2 to 18.1]
Information in this document applies to any platform.

Symptoms

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.

Changes

This is likely a new installation of either the client or the database server.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References

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