Login failure

I have a problem and i saw that it hasn't only happened to me: From some time when i try to connect to my account the "Connecting" window appears. Nothing wrong here. After like 1 min, the connecting window is still at "Connecting" and then a pop-up appears saying: "Unable to connect.Please try again later" + that blizzard support link. I tried several times to connect, i waited 1 hour and i even restarted my PC a few times only to get the same thing: "Unable to connect". Today with no hope left i tried one more time to connect to my account and it finally worked without a problem like after 1 day of connecting failures... untill this night when it happened again... same story that i'm unable to connect to my account. This is kinda pissing me off because i never, EVER, had this problem. If someone can help me with this problem i'll be so grateful



Thank You