The earliest recollection of this bug is traced back to PAN-OS 10.1.9 - July 22, 2025. This bug is fixed in PAN-OS versions 10.1.9, 9.1.16. Fixed an issue where the following error message was not sent from multi-factor authentication PingID and did not display in the browser: Your company has enhanced its VPN authentication with PingID. Please install the PingID app for iOS or Android, and use pairing key:. To connect, type "ok" . 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/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-16-addressed-issues