{"meta":{"title":"Troubleshoot security configurations","intro":"Identify and resolve issues with your security configurations by diagnosing common problems related to setup, coverage, and license availability.","product":"Security and code quality","breadcrumbs":[{"href":"/en/code-security","title":"Security and code quality"},{"href":"/en/code-security/reference","title":"Reference"},{"href":"/en/code-security/reference/security-at-scale","title":"Security at scale"},{"href":"/en/code-security/reference/security-at-scale/troubleshoot-security-configurations","title":"Troubleshoot security configurations"}],"documentType":"subcategory"},"body":"# Troubleshoot security configurations\n\nIdentify and resolve issues with your security configurations by diagnosing common problems related to setup, coverage, and license availability.\n\n## Links\n\n* [A repository is using advanced setup for code scanning](/en/code-security/reference/security-at-scale/troubleshoot-security-configurations/a-repository-is-using-advanced-setup-for-code-scanning)\n\n  You see an error when you try to attach a security configuration with default code scanning enabled to repositories that use advanced setup for code scanning.\n\n* [A feature has disappeared from a security configuration](/en/feature-disappears)\n\n  Changes to your GitHub Enterprise Server instance's installation settings by a site administrator may affect which security features are available to your configuration.\n\n* [Default setup for code scanning overrides advanced setup](/en/code-security/reference/security-at-scale/troubleshoot-security-configurations/unexpected-default-setup)\n\n  You apply a security configuration with \"Enabled with advanced setup allowed\" and the existing advanced setup for code scanning is ignored in some repositories.\n\n* [Finding and fixing configuration attachment failures](/en/code-security/reference/security-at-scale/troubleshoot-security-configurations/finding-repositories-with-attachment-failures)\n\n  You can identify any repositories where the security configuration could not be attached, and follow guidance to remediate the problem.\n\n* [Not enough GitHub Advanced Security licenses](/en/code-security/reference/security-at-scale/troubleshoot-security-configurations/not-enough-github-advanced-security-licenses)\n\n  If you are on a subscription-based billing model for GHAS, you need available GHAS licenses to enable GHAS features on a private repository."}