How long is the upgrade
The upgrade has been going on for 30 minutes. Is this normal?
How long is it supposed to tie for the download?
This is for my apple tv
It can vary based on network.
What is your current connection, use speedtest.net
If on wifi try ethernet.
Make sure DNS is set to automatic (settings - general - network)
Make sure router is up to date. Reboot ATV and router.