Ora-03135: Connection Lost Contact After Idle Time (Doc ID 1380261.1)

Last updated on FEBRUARY 24, 2017

Applies to:

Oracle Net Services - Version 10.2.0.4 to 10.2.0.4 [Release 10.2]
Oracle Net Services - Version 11.2.0.4 to 11.2.0.4 [Release 11.2]
Oracle Net Services - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Oracle Net Services - Version 11.2.0.1 to 11.2.0.3 [Release 11.2]
Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Information in this document applies to any platform.

Symptoms

Connections that are established to the database and left idle for a period of time are being abruptly terminated with the following error:

 

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms