The earliest recollection of this bug is traced back to PAN-OS 10.1.13-h1 - November 18, 2024. This bug is fixed in PAN-OS versions 10.2.10, 10.2.8-h4, 10.1.13-h1, 11.0.5, 11.1.3. Fixed an issue where the GlobalProtect SSL VPN tunnel immediately disconnected due to a keep-alive timeout. For more information: https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-release-notes/pan-os-10-1-13-known-and-addressed-issues/pan-os-10-1-13-h1-addressed-issues https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-10-known-and-addressed-issues/pan-os-10-2-10-addressed-issues https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-8-known-and-addressed-issues/pan-os-10-2-8-h4-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-release-notes/pan-os-11-0-5-known-and-addressed-issues/pan-os-11-0-5-addressed-issues 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-addressed-issues