title: Reliability of C2DM
body: <p>I am having issues with C2DM. Sometimes works perfectly, sometimes my messages simply do not get pushed. <strong>Is there reliable way to enforce this connection? To pull messages.</strong> I read somewhere that what google do is keep low bandwidth TCP connection to their server at all time. So I assume that 
  when switching between network types TCP connection falls down and Android tries to reestablish connection to C2DM servers. So that might fail on WiFi with restricted network. <strong>Is that wrong assumption?</strong></p>
  
  <p>I have noticed with WhatsApp that on WiFi sometimes I do not get messages. When I switch to 3G I usually get them at the moment of the switch. <strong>What tips from your experience with C2DM would you offer?</strong></p>