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ORA-16664 , ORA-12154 and ORA-16883 (Doc ID 2948630.1)

Last updated on MAY 23, 2023

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


For the purposes of this document, the following fictitious environment is used as an example to describe the procedure:

Primary database: PROD
Standby database: PROD_dg

Data Guard configuration details :

PROD having physical standby with DG broker and Oracle restart configured with Enterprise manager. (non RAC)


Data Guard Broker show configuration failing with ORA-16664 , ORA-12154 and ORA-16883 after changing the Data guard network to second NETWORK.


1. tnsping and SQLPLUS connection from primary to standby and vice versa working fine with the respective dgconnectidentifier.

2. DGMGRL>show configuration from PROD takes time and failing with ORA-16664.



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