Connection problem

Hi,
I'm having this problem for 2 days now and I tried everything I could without having any solution.
First of all, the app cannot sent or receive messages so I tried to uninstall/install whatsapp to work that out but it is still not working. Apparently is something in my device that makes this app unavailable to connect to internet.
This is what happens: when I tried to set up whatsapp again, after install, I can set and receive de confirmation code correctly (so there's no problem with Wi-Fi), but when I try to get the messages backup, appears this:

My Wi-Fi and mobile data IS WORKING CORRECTLY.

--Support Info--
Motorola RAZR i
Description: 2.12.500
Version: 2.12.500
Carrier: Claro AR
Manufacturer: motorola
Model: XT890
OS: 4.4.2
Product: XT890_rteu