Update at 3pm 

We believe service has been resolved, we will be monitoring for further impact but we believe the issue to now be resolved.  Our apologies for any disruption this has caused your school.

Original Update

N4L are aware that a number of schools are experiencing issues with internet at the moment.  The cause of this issue is a problem with one of our web filtering proxy servers.  Our engineers are currently working to enact a workaround  to this attack and expect to have service restored shortly.