Troubleshooting ORA-12547 TNS: Lost Contact
(Doc ID 555565.1)
Last updated on AUGUST 02, 2021
Oracle Database - Standard Edition - Version 10.2.0.5 to 10.2.0.5 [Release 10.2] Oracle Database - Enterprise Edition - Version 188.8.131.52 to 184.108.40.206 [Release 12.1 to 12.2] Oracle Net Services - Version 10.2.0.5 to 220.127.116.11 [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.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!