For me all the pings at each server is ok, but no login anyway. They just turned off login server but all the others are staying on. The same thing was at Ru-off, when after OH-MY-GOD-HOW-MANY-PLAYERS siege time arrived, they just wasn't able to deal with such online rate and all who was licky to disconnect or was trying to relog on another toon (like me) had suffer from "I can't enter the game!" while not-disconnected players was able to play further. Tee-hee.
Just wait and that's all.