Ever since I upgraded to iOS 11, my Do not Disturb stopped working. When enabled, my phone is set up to only ring when numbers in my "favorites" call but it rings for all numbers. I have an iPhone 6S plus if it makes any difference.
iPhone 6s Plus, iOS 11.0.3
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Source: https://www.howtoisolve.com/do-not-disturb-while-driving-not-working-iphone/
Update to 11.2
Settings - General- software update
After updating ios11 I too am facing the same problem of dnd not working. I have tried resetting it to factory settings But still the problem persists.
Do not Disturb not working for iOS 11.0.3
