Lumia 1520 not getting notifications after Cyan update

[WPCentral Question]

Hey everyone.. i updated my Lumia 1520 to WP8.1 cyan yesterday.. its really awesome but i am not getting notifications from Whatsapp, Viber and Kik.. i have checked everything 'data sense' 'wifi sense' 'apps running in the background'..i tried reinstalling the apps but still facing the same problem.. Is anyone having the same issues and what could be done to solve it?
Reply would be much appreciated

Cheers

 

[switch side method]

Like I said earlier....whatsapp is not supported for 8.1,that's why it says its not 100% when you install it with 8.1,facebook is fine for me tho

 

[Alex Rodriguez Jr.]

Like I said earlier....whatsapp is not supported for 8.1,that's why it says its not 100% when you install it with 8.1,facebook is fine for me tho

This is certainly not the reason for lack of notifications as plenty of us are using WhatsApp just fine on update 1.

 

[Hammad Moghul]

Every app is working fine for me now. I didn't do anything or changed any settings.

 

[chooke ps]

my lumia 620 have the same problem after cyan update there is no notifications