As far as I've noticed we Wazapp users have a better time than regular Whatsapp users as far as connection issues go. Whatsapp always runs as a background app and there's no workaround when messages are not getting sent/received. With Wazapp, atleast there's the option of terminating the application and starting it again to fix most issues.

For those of you who are bothered by the fact that sometimes Wazapp is stuck on connecting or has crashed and you don't notice it until you open Wazapp, here's a workaround -

Get Billboard from Nokia Store. Enter this line -
{{green}}Wazapp: {wazapp-status}{{red}}{wazapp-status!Crashed}

Now you always know if Wazapp is online and if it's stuck on connecting or something, you just need to reconnect to your net or restart Wazapp. Cheers!