Log file message:
(Single Sign-On) Pre-authenticated credentials (for a service account) were not specified in configuration, and is required by single sign-on authentication.
Cause
Single sign-on was enabled, but a service account was not specified.
Resolution
When SECURITY_AD_USE_SINGLE_SIGN_ON=true, ensure that a security account is specified using the SECURITY_AD_PREAUTH_USERNAME and SECURITY_AD_PREAUTH_PASSWORD configuration parameters. For more information, see Updating Windows Domain Configuration.