Its been a week of frustration, but also success. We always have a perennial problem of broken apps, which work ok on the average home network, but as soon as you try to secure things you hit problems. Although there is a good argument for keeping school networks fairly permissive, realistically schools can't just turn off their firewall and let everyone at it - not only would the school be failing in their duty of care, but it would be a security nightmare too.