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ORA-12638: Credential retrieval failed

Dear Gurus,

I am facing the following issue in my environment "ORA-12638: Credential retrieval failed", thus i have already applied the note 417561 after this the same issue occurs.

In addition to this i have followed the steps described in note 417561, and I tryed to

start listener and oracle service under <sid>adm but in few hours the issue occurs again.

I have upgraded the oracle version to, the last was I wasted all the possibilities to solve this issue, but did not work.Follows my environment configuration.


Windows 2000 Server SP4

R/3 Release 4.6C



Windows 2000 Server SP4

R/3 Release 4.6C


Igor Pereira

Former Member
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