Originally Posted by
TUWOD
Checked the blizz support forums and this is what worked to have it fixed, for me at least:
1) Open the BNet Launcher.
2) Highlight "World of Warcraft" in the left column, left-click the "Options" link just to the right of it and choose "Game Settings."
3) Under "World of Warcraft: Warlords of Draenor," check the "Additional command line arguments" box.
4) In the blank line that appears, enter -uid wow_engb and click "Done."
5) Press the big blue "Play" button as usual and enjoy your stay in Azeroth.