Sorry for the late response! We have not seen the issue when we connect to the AP through Settings > Wi-Fi. However, we have done some more testing, and it seems very sporadic in the sense that we are sometimes unable to reproduce it at all.

Thanks very much for looking into this! I have now filed a bug: FB20976002. I do have a PCAP already that confirms the SSID is beaconing on the given channel, but there is no activity (e.g. probe request) coming from the iOS device, so I would guess there is something going on on the iOS side here. :) I have attached both syslogs (pulled with idevicesyslog while reproducing) and a PCAP to the bug. Hopefully this is sufficient. Otherwise I will see if I can enable additional Wi-Fi Logging.

@sengui Tagging you here as I am for some reason unable to add a comment in the above thread. Regarding FB20976002, I can let you know here once I get a response from Apple. Would you mind sharing how the problem manifests itself in your case? Do you see the same logs (e.g. "failed to association error 1/2"?