1, the network is normal, exclude the method of logging in to the web page to see, can normally log in to the web page that is to exclude the network reasons;
2, exclude whether the maintenance, update, go to the dazzle dance era of the official website to see the announcement can be excluded;
3, exclude the graphics card driver is too old and too old, update the graphics driver to the latest version of the driver (I use the driver elf) Update, a key to download and install can be dealt with), see if you can log in normally;
4, exclude the computer system and the game whether there is a conflict, you can re-download and reinstall the game, if you can not log in, please redo the computer system.