site_archiver@lists.apple.com Delivered-To: macnetworkprog@lists.apple.com On 16 Jul 2018, at 23:49, Daniel Jalkut <jalkut@red-sweater.com> wrote:

is the app in question compiled under an older SDK?

I’d also like to know the answer to this. If you are building with older tools then you could try creating a small test project with the latest Xcode to see how that behaves. On 16 Jul 2018, at 22:46, James Walker <jamesw@frameforge3d.com> wrote:

_kCFStreamErrorCodeKey=-9806

`errSSLClosedAbort` indicates that the server gracefully closed the connection. It’s hard to tell why it did that, but the next step is to use a packet trace to see how far things got during the handshake progress. If this is a TLS version problem you’ll see the client send a Client Hello with a max TLS version of 1.0, to which the server will respond by closing the connection. See QA1176 “Getting a Packet Trace” for more about packet traces. <https://developer.apple.com/library/mac/#qa/qa1176/_index.html> Share and Enjoy -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/Hardware _______________________________________________ Do not post admin requests to the list. They will be ignored. Macnetworkprog mailing list (Macnetworkprog@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/macnetworkprog/site_archiver%40lists... This email sent to site_archiver@lists.apple.com