JDBC Thin Driver 11g Causes "Java.Sql.Sqlexception: Io Exception: The Network Adapter Could Not Establish The Connection" While Connecting to Oracle Database 11g

(Doc ID 947653.1)

Last updated on FEBRUARY 09, 2018

Applies to:

JDBC - Version and later
Information in this document applies to any platform.
***Checked for relevance on 28-Jan-2014***


JDBC THIN client connections from your application server began failing shortly after dataguard was implemented. The class used to implement the JDBC driver is:


Error message received:
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection


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