Since 12th grade are heavy laptop users, we did wonder what amount of our bandwidth would be freed up when they went off to do their IB exams.
Answer: none. In fact it is worse than before.
Two colleagues had to give up on their booked (and paid for) webinar yesterday since it was impossible to follow it.
Here is the usage chart - the first distribution being yesterday, Wednesday.
Conclusions? We need more bits per second!