Error "ORA-12638: Credential retrieval failed" appears when trying to connect to Oracle database using the TIBCO Spotfire Connector for Oracle

Error "ORA-12638: Credential retrieval failed" appears when trying to connect to Oracle database using the TIBCO Spotfire Connector for Oracle

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Article ID: KB0072288

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Updated On:

Products Versions
Spotfire Analyst All

Description

When trying to connect to an Oracle database using data source/connector, and you intend to use user name and password authentication, you receive the error "Could not connect due to an unknown error. External error: ORA-12638: Credential retrieval failed".

Issue/Introduction

When trying to connect to an Oracle database using the TIBCO Spotfire Connector for Oracle, the error "ORA-12638: Credential retrieval failed" appears

Environment

TIBCO Spotfire Connector for Oracle

Resolution

There are 2 possible suggested solutions to this error:

1. Go to the sqlnet.ora file in the $ORACLE_HOME/network/admin directory. Change the following parameter:

Change - SQLNET.AUTHENTICATION_SERVICES= (NTS)
To: - SQLNET.AUTHENTICATION_SERVICES= (NONE)

FYI: When set to NTS, Oracle tries to authenticate you using your Windows credentials.

2. In Windows, bounce the server (stop and re-start) the Windows services for Oracle.

Additional Information

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