The earliest recollection of this bug is traced back to PAN-OS 8.1.14 - January 09, 2024. This bug is fixed in PAN-OS versions 9.1.2, 8.1.14. Fixed an issue where connections to the web interface were abruptly interrupted due to a double free condition (gPanUiPhpGlobal_secure_config_reset), which led to unexpected process restarts. Fixed an issue where connections leading to the web interface were abruptly interrupted due to a double free condition (gPanUiPhpGlobal_secure_config_reset), which led to unexpected process restarts and core file generation. For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-14-addressed-issues https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-2-addressed-issues