Troubleshooting
Problem
This technote explains why the error, ORA-12638: Credential retrieval failed, might occur when opening an IBM® Rational® RequisitePro® Oracle based project.
Cause
The full error message is as follows:
ORA-12638: Credential retrieval failed
- Oracle SQL*Net error
- Unable to connect to datasource
This error can be caused by incorrect configuration of the Oracle client sqlnet.ora file.
Resolving The Problem
To resolve this issue perform the following:
- Locate the sqlnet.ora file on the client system which is by default stored in:
C:\oracle\oraXX\network\admin
- Locate the following entry:
SQLNET.AUTHENTICATION_SERVICES= (NTS)
- Replace the original entry with the following:
SQLNET.AUTHENTICATION_SERVICES= (NONE)
[{"Product":{"code":"SSSHCT","label":"Rational RequisitePro"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"Database: Oracle","Platform":[{"code":"PF033","label":"Windows"}],"Version":"2003.06.13;2003.06.14;2003.06.15;2003.06.16;7.0;7.0.0.1;7.0.1","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
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Document Information
Modified date:
16 June 2018
UID
swg21266279