Our JSS is managing iPad kiosks in several buildings on our campus. For convenience/reliability, they all connect to the campus guest network, which is only open to ports 80 and 443.
Last week, they all stopped updating inventory and didn't respond to remote commands, but they were still connected to the internet. My thought was "hey, it can't communicate with APNs!" and started looking into it. We ended up rebooting our JSS and that's when they all started checking in. I'm trying to clarify what might have happened, so I have a few questions:
1a) For mobile devices to update their inventory, the JSS is sending a command over APNs every time, whether it's the regularly scheduled update, or a manually triggered one, correct? In other words, if our JSS couldn't connect to APNs, updates would have stopped?
(however, some of our mobile devices did check in during this "blackout" period)
1b) Even if the JSS couldn't communicate with APNs, our computers would still check in, because that has nothing to do with APNs, correct?
2) Can mobile devices communicate with APNs over only port 443? How would they handle port 5223 not being available?
