I have tried with just using the settings on the captive portal page with no luck at all. I can login without problems, but none of the rate limits i set work at all.. i have done it allowing each user 600k down and 600kup, testes and users get anywhere from 1mb to 4 mb down ans up..
i have a FreeRADIUS server, ready to go but i also cant get that to work with the captive portal. I set the radius servers IP in the external radius server settings, but when i try a login, i get an error saying that there was no valid radius reply or something like that.