Computer is connected to the internet but there's no connection

Hi guys, I have problem like this: I was working normaly when message popped up saying there's some errror and that system need to restart. I did it (It happend to me before) and when I tried to go to facebook it said it takes too much time to load the page and that there's problem with connection. I checked router but all computers and mobile phones in house have interenet so I guess problem is only in my computer. The icon in right bottom corner says pc is connected to the internet. Does anyone know what it might be?

P.S Sorry for bad english and thank a lot :)