Thank you for the quick reply, the wireless network using the portal is configured as such clients get DHCP from the controller, there GW is 172.17.1.1 which is also the GW for the private network of the ISP modem, 172.17.1.6 is the address of the local interface on the controller. So i believe the first steps you suggested i did already, the last step, issuing the captive portal redirect command pointing it to 172.17.1.6 unfortunately it still does not auto redirect, if i manually type in the url for the portal including ip it works.