Troubleshooting steps for when the firewall is down

Last modified on 15 Apr, 2025. Revision 6
This text is thought to be some general suggestions on what to check if your firewall is down. This text is not all that might be needed, but should be considered to be part of the general check in this scenario
Status OK

Firewall Completely Down

Change Review

  • Were there recent firmware or configuration updates?
  • Revert changes if they correlate with instability.

Diagnostic Actions

  1. Test ICMP reachability across all management/data interfaces.
  2. Attempt WebUI and SSH access from different subnets.
  3. Test InControl access if in use.
  4. Connect directly via console.
  5. Review HA cluster status:
    • Is the issue isolated to one node or both?
    • Are any nodes accessible?
  6. Inspect physical indicators (LEDs, fans, PSU).
  7. Check switch logs for link activity or port flapping.

Recovery Milestones

  • Firewall is operational and passing traffic.
  • Reverting recent changes restores stability.
  • Root cause is confirmed to be external (e.g., power failure or switch issue).

Related articles

No related articles found.



Tagscoretroubleshoot