Hi,
we have problem with Aruba Instant On.
Captive portal cannot be loaded when iPhone connects.
There is an error for certificate at link http://captive-2022.aio.cloudauth.net/
I contacted Aruba support and they asked me if there is an option to set link above.
I tried to change fields at defined gateway (below) but it keeps showing same cert error.
Android phones connect and load portal without problem.