Comment by newjersey

What is the fix here that does not involve intermediate servers? The xmpp client conversations asks you to opt out the app from aggressive battery optimization in Android Lollipop. I tried saying no and killing the app. Messages took over two minutes to arrive while I was using the device (not the app). I don't think there is an easy fix. This is why Google Cloud Messaging makes sense but the problem is that now Android is coupled with Google services. :(