The earliest recollection of this bug is traced back to PAN-OS 10.2.11 - March 11, 2025. This bug is fixed in PAN-OS versions 10.2.11, 11.1.5, 11.2.3. ( VM-Series firewalls in HA configurations only ) Fixed an issue where BGP routes from the active firewall were lost when the passive firewall was rebooted. For more information: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-11-known-and-addressed-issues/pan-os-10-2-11-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-5-known-and-addressed-issues/pan-os-11-1-5-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-3-known-and-addressed-issues/pan-os-11-2-3-addressed-issues