> For the complete documentation index, see [llms.txt](https://docs.eseye.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.eseye.com/hera604/diagnostics-and-maintenance.md).

# Diagnostics & Maintenance

- [Health monitor](https://docs.eseye.com/hera604/diagnostics-and-maintenance/health-monitor.md): Test WAN connectivity and define automatic recovery actions.
- [General settings](https://docs.eseye.com/hera604/diagnostics-and-maintenance/health-monitor/general-settings.md): Configure system-wide monitoring and recovery behaviour.
- [Settings for each WAN interface](https://docs.eseye.com/hera604/diagnostics-and-maintenance/health-monitor/settings-for-each-wan-interface.md): Configure Health Monitor tests for each WAN interface.
- [Overrides for each WAN interface](https://docs.eseye.com/hera604/diagnostics-and-maintenance/health-monitor/overrides-for-each-wan-interface.md): Override Health Monitor values for a specific WAN interface.
- [File Management](https://docs.eseye.com/hera604/diagnostics-and-maintenance/file-management.md): Download and restore configuration archives.
- [Configuration backup](https://docs.eseye.com/hera604/diagnostics-and-maintenance/file-management/configuration-backup.md): Download a router configuration backup.
- [Configuration upload](https://docs.eseye.com/hera604/diagnostics-and-maintenance/file-management/configuration-upload.md): Upload a router configuration backup.
- [Software upload](https://docs.eseye.com/hera604/diagnostics-and-maintenance/file-management/software-upload.md): Upload supported router software.
- [User Management](https://docs.eseye.com/hera604/diagnostics-and-maintenance/user-management.md): Secure administrator access.
- [Restart and reset](https://docs.eseye.com/hera604/diagnostics-and-maintenance/restart-and-reset.md): Restart safely, restore factory defaults, and use the physical reset button.
- [Reboot](https://docs.eseye.com/hera604/diagnostics-and-maintenance/restart-and-reset/reboot.md): Restart the router.
- [Factory reset](https://docs.eseye.com/hera604/diagnostics-and-maintenance/restart-and-reset/factory-reset.md): Restore the router to factory defaults.
- [Data Logging & Performance](https://docs.eseye.com/hera604/diagnostics-and-maintenance/data-logging-and-performance.md): Diagnose common Hera 600 connectivity and management issues.
- [Settings](https://docs.eseye.com/hera604/diagnostics-and-maintenance/data-logging-and-performance/settings.md): Configure data logging.
- [Performance](https://docs.eseye.com/hera604/diagnostics-and-maintenance/data-logging-and-performance/performance.md): View router performance information.
- [System settings](https://docs.eseye.com/hera604/diagnostics-and-maintenance/system-settings.md): Configure system-wide settings.
- [Network time protocol (NTP)](https://docs.eseye.com/hera604/diagnostics-and-maintenance/system-settings/network-time-protocol-ntp.md): Upload supported software to the Hera 604.


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