Why did an app backup to the cloud on my cellular data despite being connected to a local wifi network *and* having the iOS9 wifi assist feature disabled?
I was backing up some of the contents of my phone to cloud storage while connected to my local wifi network. While working on my Mac, I received an iMessage saying I'd used 90% of my data. I thought it was odd, so I checked my phone and the wifi symbol was still on--I chocked it up to heavy usage and a delayed notification.
Then a few minutes later, I received another notification saying all of my data had been used. I checked my usage via the app and site to confirm, and it was true. I was connected to the wifi the entire time, wifi assist had been off (my plan only covers 2gb, I always keep it off), and the app is set to only backup on a wifi connection. What gives? How could it have backed up on cellular connection? Could it be that my phone has some kind of error to display a wifi connectivity icon or to have wifi assist enabled while the toggle shows it's off?
I use an iPhone 6s+ on iOS 9.0.2, and I'm connected to by University wifi network and through a VPN.
