The earliest recollection of this bug is traced back to PAN-OS 11.1.3 - January 26, 2026. This bug is fixed in PAN-OS versions 11.1.4-h17, 11.1.5. A firewall using the Advanced Routing Engine configured with OSPF crashes when connecting to the neighbor while exchanging route maps. Fixed an issue where, when the Advanced Routing Engine was configured with OSPF, the firewall stopped responding when attempting to connect to the neighbor while exchanging route maps. For more information: https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-3-known-and-addressed-issues/pan-os-11-1-3-known-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-4-known-and-addressed-issues/pan-os-11-1-4-h17-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-4-known-and-addressed-issues/pan-os-11-1-4-known-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