Thanks for your responses. I am afraid we can't change our architecture at this point as we are very near to a full rollout of our app across the airline fleet. Is there any way we can make this more reliable? If not what would you suggest? Just to answer below: How is your network protocol architected? Do you have one main device and all the other devices sync up with that? Or do every device share state directly with every other device? It is the former, there is one admin device and multiple slave devices which connect with the admin. the data captured in each device is relayed to the admin device which then relays it to all devices Do you rely on peer-to-peer Wi-Fi? Or are all these iPads on the same infrastructure Wi-Fi network? We rely on Wifi Infrastructure onboard and all devices are connected to the same WiFi to exchange data