Autologin is used to automatically allow the end-user devices (smartphones, tablets or laptops) to get online bypassing the captive portal.
On enabling this feature on the hotspot gateway, the gateway sends the MAC address of the end-users device to the RADIUS server for validation. If the MAC address is registered under Autologin section, the RADIUS server will authenticate the end user’s device. The end-user will not see the captive portal and will be able to start browsing without redirection.