EM 13.4: Connection to the Target Database Fails with Error : Connection Failure may be due to a slow network, or the presence of an intervening firewall
(Doc ID 2750147.1)
Last updated on FEBRUARY 22, 2021
Applies to:Enterprise Manager for Oracle Database - Version 18.104.22.168.0 and later
Information in this document applies to any platform.
From EM 13.4 Console,
Accessing Database home page / performance pages / doing the test connection gives following error:
This is observed for all the database targets for which the banner is enabled in sqlnet.ora file
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