You may encounter this issue after clicking "Play" already in-game. You can't pass the "Initializing" phase and logging in gets looped.
If you are encountering this issue right now, please try to do the following:
Make sure that the game is not set up in the APPDATA folder and launcher is ran as admin.
- Open the console right after you've hit play already in game. You can open console by clicking ctrl+~. Wait till the game is launched.
- When stuck on "Initializing" open the console and enter the command connecttogameserver().
- Open the launcher, click Options - Repair. Retry after installation.
If none of this helped - please send us recent log files and dxdiag to firstname.lastname@example.org. This will help us to investigate.