The earliest recollection of this bug is traced back to PAN-OS 10.1.0 - July 29, 2024. GlobalProtect authentication fails with an Invalid username/password error (because the user is not found in Allow List ) after you enable GlobalProtect authentication cookies and add a RADIUS group to the Allow List of the authentication profile used to authenticate to GlobalProtect. Workaround: Disable GlobalProtect authentication cookies. Alternatively, disable (clear) Retrieve user group from RADIUS in the authentication profile and configure group mapping from Active Directory (AD) through LDAP. 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