Not receiving WhatsApp messages until I open the app - WP8.1

[Windows Central Question]

Receiving whatsapp notifications only after opening the app, when i exit the app, no notifications are coming.

 

[charlatan1978]

Restart your phone.

 

[parapomflica]

I have the same problem,internet connection is good but i get no notifications until i open it.

 

[Maceart]

Restarting doesn't do ****. This problem is still there since the last update.

Windows Phone push notifications are garbage.

 

[Jenn Hsen]

I am having this problem too. And I noticed WhatsApp is draining my battery much more significantly than before.
I am using a Lumia 920, windows phone 8.1.

Before this update, everything was fine.