Hotspot , force users to relogin after uptime is reached

Hi guys, my hotspot is workign fine.
I can login with trial and mac-address users.
After user connects his mobile wifi to hotspot, it automatically redirects to login page and after successfully login , user can navigate.
Problem is …after uptime is reached , user can not navigate as expected but there is no notification at all , it would be great to:
either redirect to login or force to login web.
Is it possible ?
How can I do it ?
Regards.
Leandro.