As I reported last week (in iOS 11 about to release – Things to be aware of), the initial release of iOS 11 was broken in regards to HTTP/2 negotiation.
Today (26 September 2017) Apple has released iOS 11.0.1 which fixes this problem. This is noted in the Apple KB HT208136.
This means you can re-enable HTTP/2 on your Windows Server 2016 servers!
Of course, iOS 11.0.1 probably has other corrections, but I’m not aware of them. RedmondPie has download links and other information about the update.
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