Some one plsss help

hi, yesterday 15-9-2007, i was able to connect to the server of guild wars fine, today, i can download everything, but when i enter my user name and password, it cant connect, that happen to me before, and i uninstall and reinstall the game, and it works, but i did that twice, even installed the game in a differnet computer, and i cant still log in, i am using dial up so there is no restriction at all, pls pls help me, i miss the game .