I'm using a VF Huawei VDSL modem at home, no recent issues.

Upgraded 3 ipads, 3 iphones to iOS 9 over the past week or so. Everything had been going OK until a few days ago when I started getting a lot of disconnections when using any iOS 9 device, laptop running Windows 10 was OK.

Today all iOS 9 devices were unable to connect to the internet, they could connect to the modem OK but nothing else. An iPhone 6+ running iOS 8.4 was still working fine.

Appears to have been some type of conflict between the modem and every iOS 9 device we had, seemed strange that it has been happening off and on over the last couple of days before total failure this evening.

I have reset the modem and all devices are wroking again, just wondered if anyone knows what the problem may have been? Nothing else had been changed.