The ‘Access Denied’ error in GitHub Enterprise repositories is generally due to permission settings controlled by your organization’s policies. Often, enterprises restrict repository access based on role-based permissions or require a VPN for remote access. Check with your IT team or GitHub administrator to ensure that your account has appropriate permissions and that all security requirements, such as VPN or 2FA, are met. In some cases, organizations set up branch protection or specific GitHub Actions permissions that may interfere with operations, so it’s beneficial to clarify repository access guidelines with relevant administrators. Verifying your credentials and meeting security standards should help resolve this issue.