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.
Topic:
App & System Services
SubTopic:
Networking
Tags: