iOS 9.3 "Unable to Verify Update" - new Firewall - what ports?

Hi,


I am getting a "Unable to Verify Update" error for iOS 9.3 update. Stating that I am no longer connected to the Internet.

I do know that I am connected to the Internet (through home wifi).

However, I happen to have a brand new Firewall. Could this error be caused by blocked ports?


If yes, what ports does iOS need?


I am seeing some blocked traffic for ports 16403, range 49460 - 49472.

Posted on Mar 25, 2016 7:23 AM

Reply
6 replies

Mar 25, 2016 9:32 AM in response to cima33

Apple has pulled the iOS 9.3 update for older devices (iPad Airs and previous, iPhone 5s and previous) due to problems with Activation. See these articles for details and possible workarounds.

http://www.imore.com/apple-working-ios-93-fix-older-iphone-ipad

https://support.apple.com/en-us/HT206203


A new build for the iPad 2 is now available that does not require the Activation step. A fix for the other devices is not yet available. I doubt it is your firewall but you could disable it temporarily and test.

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iOS 9.3 "Unable to Verify Update" - new Firewall - what ports?

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