Troubleshooting Guide for ORA-12537 / TNS-12537 TNS:Connection Closed
(Doc ID 555609.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Net Services - Version 220.127.116.11 to 18.104.22.168 [Release 9.2 to 12.2]
Oracle Database - Enterprise Edition - Version 22.214.171.124 to 126.96.36.199 [Release 12.1]
Information in this document applies to any platform.
Aid in diagnosing, explaining and resolving the TNS-12537 or "connection closed" error for local or remote connections.
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