Troubleshooting ORA-12547 TNS: Lost Contact
(Doc ID 555565.1)
Last updated on JUNE 15, 2020
Oracle Database - Standard Edition - Version 10.2.0.5 to 10.2.0.5 [Release 10.2] Oracle Database - Enterprise Edition - Version 220.127.116.11 to 18.104.22.168 [Release 12.1 to 12.2] Oracle Net Services - Version 10.2.0.5 to 22.214.171.124 [Release 10.2 to 12.2] Information in this document applies to any platform.
Aid in diagnosing and resolving the TNS-12547 or "lost contact" errors for both local and remote Oracle client connections.
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