TOAD “Credential retrieval failed” error

StackOverflow https://stackoverflow.com/questions/439326

  •  22-07-2019
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Question

Semi-regularly when using TOAD, I will try to connect to a DB and get the error "ORA-12638 Credential retrieval failed". I have to restart my TOAD to get past this. It's a pain if I have other connections active. Does anyone know how to avoid or get around this error?

Thanks

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Solution

1) Go to /oracle home/network/admin and open sqlnet.ora

2) Search for SQLNET.AUTHENTICATION_SERVICES= (NTS) and change it to SQLNET.AUTHENTICATION_SERVICES= (NONE)

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