I support a wifi hotspot for one of my clients and have issues with IOS 6 users reaching the guest captive portal.   1) Private ip addresses are used, 192.168.x.x 2) Captive portals were working before they upgraded. I tested with my own device before and after the IOS upgrade. Worked before, fails now. 3) The iphone/ipad times out without reaching the captive portal. 4) I do not see any attempts on the wifi network to authenticate.      In the past, the...