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I use UniDAC Professional Edition 4.6.12 version to RAD Studio XE3 and migration to Oracle version 11.2.0.4.0 is occurring ORA-010017 Error: Invalid username / password; Logon denied. I'm using a direct connection. Below information about the database. Is there any solution without having to switch to a non-direct connection?

NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CURRENCY $
NLS_ISO_CURRENCY AMERICA
NLS_NUMERIC_CHARACTERS .,
NLS_CHARACTERSET WE8ISO8859P15
NLS_CALENDAR GREGORIAN
NLS_DATE_FORMAT DD-MON-RR
NLS_DATE_LANGUAGE AMERICAN
NLS_SORT BINARY
NLS_TIME_FORMAT HH.MI.SSXFF AM
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY $
NLS_COMP BINARY
NLS_LENGTH_SEMANTICS BYTE
NLS_NCHAR_CONV_EXCP FALSE
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_RDBMS_VERSION 11.2.0.4.0

Hello,

This problem is due to the fact, that since Oracle 11.2.0.4, server access protocol was changed. We have already supported this protocol in ODAC and UniDAC. Please download the latest UniDAC version, check connection again.

Unfortunately I already have the latest version that our company has the right to support and download (4). As I work in a public company has not been possible to upgrade to version 5. Thanks.

We don't add changes to the previous versions, therefore you should update ODAC to be able to work with the latest Oracle versions.