In the first section, we added a captive portal that accepts authentication via the User Manager. Since there is a single option for both User Manager and voucher authentication, we could accept authentication from both at the same time.
If Local User Manager/Vouchers is selected as the authentication method, voucher authentication can be used even if the Allow only users/groups with “Captive portal login” privilege set is enabled. You will need a portal page that has fields for a user's username, password, and voucher code in order to accept both forms of authentication.