Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello, help me please. I can't loggin on all my accounts, writed "all my accounts got banned." If i create new account - same thing. I can loggin on these accounts from another computer. I am trying to change the IP but it did not help. Changed wow client but it did not help too, when i deleted realmlist.wtf i logged on account 1 time! but next time can't loggin again... Writed "account banned". I do not know what do, help please. -_-