Cant login in Frostwolf Whats going on?

I am trying to login but it stuck on "success" and nothing else happens

I am from India but i see logged in from United States 5 min ago msg

I see 1400-1500 players online and increasing.....so i am guessing problem is not in warmane.....

If its anything dangerous like hack then i need heads up

Pls tell me how to fix this

Well, I can log in just fine. Try to create a new account and log in through it. If the other account works then there's a fault within your main account. If not, then try re-installing your WoW client.