Responsive Design: don't block the workflow

I’m currently designing the interface and testing the workflow for the whole iPad/iPhone application I’m making and everything is well when everything works. However, in the current setup that I have the Insteon nodes don’t get messages from time to time; with power line signaling there is always something that can go wrong and this is why I prefer dedicated wiring but I had no choice. What happens when a message is lost is quite irritating; the GUI just sits there util the server hits a timeout. This really breaks the flow of the user. So let’s look at why this happens.
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