title: WiFi Assist iOS
body: <p>I am working on an iOS app which communicates with some hardware on the local network via wss.</p>
  <p>Unfortunately due to WiFi assist I frequently end up with the traffic intended for a lan IP says 192.168.0.18 being pushed onto cellular via WiFi assist.</p>
  <p>Is there a way to stop that from happening without requiring the user to switch off WiFi assist? I seen Sonos had similar issues some time ago but do not see how they solved it.</p>
  <p>Additionally I note the apple site explains some 3rd party apps which transfer large volumes of data or stream video will not use WiFi assist.. how are they doing that?</p>
  <p>** This is different to that of the mobile config question already posted as this is a commercial app not on managed devices.</p>