Clearpass presents a captive portal for our BYOD devices. I've noticed lately with iOS 11.2 that it takes awhile to present the captive portal to enter credentials once our BYOD SSID is connected to... a good 10 seconds or so.
We have Clearpass version 6.5.7.85381
ArubaOS 6.5.0.4 on the controllers (about to update to 6.5.3.3)
Is there a known issue with these versions and Apple iOS 11.2?