PROBLEM TO GET RE-DIRECT TO CISCO WEB AUTHENTICATION ON IPHONE

[FrejusMA]

Hi dear community, here is an issue while trying to connect to a web-auth corporate WI-FI with IPHONE devices

I'm receiving IP address from DHCP when I connect to the wireless guest network, but Safari does not re-direct me to the Cisco Web Authentication page. If I type 1.1.1.1 , I get access to the login page. Then I can enter my username and password, and get access to internet.

The network consist of Cisco access points (9130XI-E, AP1852I-E-K9 etc.. LAP) and Cisco vWLC running version 8.10.190.0.

It works normally on PCs  Windows and Android smart phone.

Have anyone encounter this before!? how to remediate!?

[FrejusMA]

You don't want to tell directors that every time they want to access internet via Wi-Fi with their iPHONE devices, they should type 1.1.1.1 in the address bar before, 

[balaji.bandi]

ok so if the issue only Iphones ? what iOS running on it, try different Lower iOS  works ?

check below some advices :

https://community.cisco.com/t5/wireless/iphone-devices-not-connecting-to-guest-network/td-p/4430574

https://www.reddit.com/r/networking/comments/xfwih2/ios_devices_not_redirecting_to_captive_portal_in/

[Rich R]

The only way to get captive portal redirect to work reliably on all modern devices is to redirect to a fully qualified domain name (FQDN) using DNS with a public certificate which matches the FQDN.  If you're using an IP address (like 1.1.1.1 - which is NOT recommended anymore - see the best practice guide link below) then most modern OS/browser treat it as insecure and either warn the user that it's insecure or block the page.