I'm configuring Oracle Data Guard and I'm experiencing ORA-12638. I have the Oracle 19c database on a Windows Server 2019.
In the DR site, I can connect to the primary with no problem. But connecting from primary to the DR site is where ORA-12638 shows.
I found out that changing the
works but I can't do
sqlplus / as sysdba in the DR site, and in DG Broker, "validate network configuration for all" fails because of an incorrect username/password, even though it is correct and I tried logging in like this:
sqlpus nolog/ enter username:sys as sysdba enter password: Connected.
How can I resolve this issue?