idid it: if you have an error like "can not resolve hostname", you should do next actions: be sure that dns-client is switched on in windows. press windows-r key combination. (this is the button with a windows logo on it) type in "%windir%\system32\services.msc" (without quotes). find a "dns-client" service in the window at the right. check it for being turned on and working. go to start - run (windows xp) or find programs and files (windows vista, windows 7) - type in "cmd" (without quotes). type in appeared window "ipconfig /flushdns" (without quotes) and press enter. reboot your pc and try to launch the game. and i still get the same problem... but if i leave "dns-client" on, and i do log in, i get "response from the certification server has been delayed. please try again later" i press confirm and game closes. what should i do next? maby something wrong with my ports, can someone help me how to repair my ports for this server.