Adobe publish online appears to be blocked by our schools web filters. Could anyone tell me what I must ask our administrator to unblock. ?
That would probably require knowledge of the server and its settings (server-side) which we don't have. I'd have the IT person test your link on a computer outside your system, and in the system and he'll probably be able to figure it out.
And specifically as mentioned in the thread, see if these settings can help your IT folks unblock successfully: Adobe Creative Cloud Network Endpoints
Please let us know if this works. Thank you.