OS Network Reachability sometimes doesn't detect network state changes

[ricardopereira]

Which version of the Ably SDK are you using?

v1.1.11 - Beta 1

On which platform does the issue happen?

iOS 13

Which version of Xcode are you using?

Xcode 11.1

What did you do?

I set my iPhone to flight mode where the network is disconnected and a network change should be detected.

What did you expect to happen?

I was expecting a network change every time I changed the flight mode: on and off.

What happened instead?

Everything works well in the simulator and the test suite is fine too but the library misses some network changes while testing with a real device.

Logs are reporting some issues:

ARTOSReachability: instance not found for target {length = 8, bytes = 0xc036920101000000}
ARTOSReachability: instance not found for target {length = 8, bytes = 0xc036920101000000}
ARTOSReachability: instance not found for target {length = 8, bytes = 0xc036920101000000}
ARTOSReachability: instance not found for target {length = 8, bytes = 0xc036920101000000}