Greetings
i am facing a challenge with most of devices(both IOS and Android)loading the CNA automatically, one strange scenario i experienced is an android device redirected to IOS CNA url "http://captive.apple.com/generate_204", also most androids you need to go through the browser. I'm on version 5.0.180 and also i have not checked the "Disable CNA for IOS/Android/windows" at the gateway level.
Kindly let me know where the challenge could be.