They probably know what it is but are just not familiar with the term.
I find the OS' captive portal detection to sometimes be flaky, so I often just directly visit www.neverssl.com to reliably trigger the captive portal redirect.
I find the OS' captive portal detection to sometimes be flaky, so I often just directly visit www.neverssl.com to reliably trigger the captive portal redirect.
But the URL is too complex among different vendor:
https://captivebehavior.wballiance.com/
I don't know why, even I tracked the URLs, sometimes it still fails (OS refuse connecting to the URL?).
DHCP option 114 (RFC8908) can advertise the URL to client directly, but it is not widely supported:
I used to use neverssl, but it's very different for .org and .com and I kept forgetting which was which.
This post reminded me to make a siri shortcut that just opens safari to http://captive.apple.com to trigger the captive portal.