I have an issue in my institution. I can't browse my iTunes U content, especially videos. Videos never start and also block iTunes 30 seconds later.
Do you know which ports need to be open ? My institution is behing a very narrow firewall, we also use a proxy (which is well configurated I guess).
I've been told that 80 and 443 ports should be open (http and https) but it doesn't help, videos are not launching.
Are there other ports to be open ?
Thanks for your help.
Check out the article below to go over other ports that are used by Apple and its services.
Well known TCP and UDP ports used by Apple software products
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