The earliest recollection of this bug is traced back to PAN-OS 10.1.9 - February 19, 2025. This bug is fixed in PAN-OS versions 10.2.3, 10.1.9. ( PA-3200 Series firewalls only ) Fixed an issue where, when the HA2 HSCI connection was down, the system log displayed Port HA1-b: down instead of Port HSCI: Down . For more information: https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-release-notes/pan-os-10-1-9-known-and-addressed-issues/pan-os-10-1-9-addressed-issues https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-3-known-and-addressed-issues/pan-os-10-2-3-addressed-issues