ORA-12638: Credential retrieval failed

[sd]

Hi,

Some of our users are getting this error either when trying to connect initially or when executing statements from new windows in multi-session mode. In the latter case switching to single-session mode appears to cure it. This doesn't work for the initial connection problem though.

Has anyone seen this before? Any suggestions?

Simon.

 

[Marco Kalter]

Do you have the following line in your sqlnet.ora file?

sqlnet.authentication_services = (NTS)

If so, can you remove it and try again?