TroubleshootingDiagnostic toolsIBM Dynamic System Analysis Preboot diagnostic programDSA diagnostic test resultsDSA Intel network test results406-004-000On this page406-004-000 : IANet:Loopback Test PassedIANet:Loopback Test PassedSeverityEventServiceableNoRecoverableNoAutomatically Notify SupportNoRelated LinksLenovo Support Web siteLatest level of DSAGive documentation feedback