SWGfL is continuing to monitor the performance of the transparent filtering farm.
Original post – 18/09/2015
SWGfL is aware of that some schools are suffering from poor performing browsing of secure sites via transparent filtering. They believe this is due to abnormally high load levels due to Apple IOS9 updates.
They have implemented a change to help reduce the impact of Apple update traffic on transparent filtering and will closely monitor over the weekend and Monday morning when heavy load returns to confirm this has resolved the issue.
Devices that have a proxy set (rather than transparent filtering) are not affected by the issue.