^^^^ would love to figure this out to... iOS 10 doesn't even have a fix or newest OS X.
Wish Apple development would make a statement about this issues. i sell phone for living and other brands like the new pixel that just launched with google's nougat can be configured threw development options after click build number 7 times most newer androids could possibly do the same things but it takes some computer skills involving a OS X or microsoft junk....
my Beliefs.... Apple is to busy in court with samsung 11/10 i believe over some issues with something that happened like 5 plus years ago... Your users would like an answer to something that i see a lot in heavy xfinityWifi areas.
xfinity or comcast themselves is another story all by itself...
selling phones for a living means i a good bit of phone issues.