[kasrik]

when I go out from home and lose my connection to wifi and then when I come back it automaticly connects to the wifi, goes to web to facebook but it has problem with Whatsapp, I cant recive messages and also I cant send them, but when I restart my phone everything goes right. Please Help

[aiharkness]

What is "it"? The BlackBerry? Your saying that after the BlackBerry reconnects to wifi that Facebook and other apps work but Whatsapp does not?

You could try toggling wifi and the mobile network off for a moment and then back on, see if that works, save having to reboot. But the problem could be, probably is, the app. I would ask Whatsapp.