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ORA-01017 connecting to 12.2 server from 11.1.0.6.0 client

edited Apr 6, 2018 8:13PM in Database Administration (MOSC) 6 commentsAnswered ✓

I have installed Oracle 12.2 on a Windows 2016 server, and created a pluggable database. I can connect to it when I run SQL Developer on the server.

Originally, when trying to connect from a client running 11.1.0.6.0 (on Windows 10), I would get ORA-28040 - No matching authentication protocol.

I added SQLNET.ALLOWED_LOGON_VERSION_SERVER=11 to sqlnet.ora on the server, which resolved the ORA-28040. But now I get ORA-01017.

The dba_users.password_versions shows 11G 12C.  Not sure if that is relevant.

Anyone know how to resolve  this?

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