I'm getting the infamous "ORA-12638: Credential retrieval failed" error message when trying to connect to Oracle...
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10g Express through the adaptor provided in the .Net Oracle Developer Tools. I'm running Windows XP Pro under a domain account.
I've installed 10g Express under a local account with Admin privileges. I've also changed "SQLNET.AUTHENTICATION_SERVICES= (NTS)" to "SQLNET.AUTHENTICATION_SERVICES= (NONE)."
Everything works perfectly under the local account. Unfortunately, when I log in under my domain account I then get the ORA-12638 error when attempting to connect.
I've attempted to run OracleServiceXE and OracleXETNSListener under my local account, but that doesn't seem to work.
Has someone run into this issue before? Does anyone know of a workaround I can use? Thanks!
If these suggestions do not work, then you'll have to file a Service Request with Oracle Support to get the issue fixed.
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