Please update your Apple devices when you get home (iOS 11.1 & macOS High Sierra 10.13.1). This update is to fix the WPA2 KRACK vulnerability (the Wi-Fi issue). Kudos to John Hurst (one of EE's top Experts) for sounding the horn.
Thank you for your very gracious comment. I appreciated it. IOS 11.1 is working just fine on both our phones here. IOS 11.1 is also supposed to protect against KRACK Wi-Fi attacks.
So this year I decided it was really about time I applied for the
@vExpert subprograms, and guess what! I'm in! So Thanks to our Programme Manager @vCommunityGuy and Sub Programme Business Units!