Do GCM CCS Upstream Messages force a re-connection to the GCM network?

Question

I am having some issues with GCM push notifications not arriving properly on Android devices. After days of research I found out, that Android Devices use a heartbeat to kee

Answer 1

You can read the full description of the problem here:

https://productforums.google.com/forum/#!msg/nexus/fslYqYrULto/lU2D3Qe1mugJ

In few words, the problem is the tcp idle timeout caused by some routers or mobile carriers.

Answer 2

I tested this and it doesn't seem so. But you can force Android to send a regular notifications heartbeat by sending the following broadcast intents:

com.google.android.intent.action.MCS_HEARTBEAT
com.google.android.intent.action.GTALK_HEARTBEAT

I got this from the Push Notification Fixer app on Google Play (I'm not the developer). https://play.google.com/store/apps/details?id=com.andqlimax.pushfixer.noroot