ios - iPad force connection to WiFi WITHOUT Internet -

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i'm working on embedded device communicate (wifi-only) ipads on wifi. however, these devices not connected internet. connecting specific port, relaying information. ipad connects access point, receives ip address dhcp, , can reach desired

what i'm seeing frequent disconnects, or interruptions in connection.

my suspicion ipad's inability connect captive.apple.com/library/test/success.html causing either re-scan wifi networks or in other way momentarily disrupt connection.

is there way disable behavior, or ensure ipad remains connected intended wifi, in absence of internet connection? either through setting on ipad, or configuration setting on embedded router/access point?

if don't mind breaking backwards compatibility older ios devices (ios 3, example), i'm told (by in dts, iirc) can send dhcp advertisement without router advertisement field, , ios right thing. have not tried personally, though.

you might try using captivenetwork framework (deprecated in ios 9 no replacement) claim control on ssid, , never report success or failure. i'm not sure if work or not, worth shot.


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