[FLEX/ATP]I have enabled 2FA required for remote VPN, why I have traffic before authentication?

Zyxel_Melen

Scenario

User enables 2FA authentication for remote access VPN, however, some users encounter that they have traffic before pass 2FA authentication.

Root cause

1. If you use Windows native VPN client, you will need to manually connect to the authentication page. Only the SecuExtender will automatically pop-out the authentication page.
2. Please check your security policy is enabled or not. Disable secuirty policy might cause this issue.

If the above doesn't solve this issue, please contact Zyxel support and provide your firewall's diagnostic file.