Connecting to EM Fails With Error "503 Service Unavailable"

(Doc ID 1174084.1)

Last updated on JANUARY 18, 2018

Applies to:

Enterprise Manager for Fusion Middleware - Version and later
Information in this document applies to any platform.
Checked currency on 21-May-2012.


When attempting to connect to EM  using "http://<server>:7001/em" for IDM, it fails with 503--Service Unavailable error as follows:

Note: The existence of the 503 status code does not imply that a server must
use it when becoming overloaded. Some servers may wish to simply refuse the connection.


Due to this issue, users are unable to access EM to do any configuration changes.




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