- Download the game client from here
- Change ..\World of Warcraft Wrath of the Lich King 3.3.5 enUS\Data\enUS\realmlist.wtf
to "set realmlist logon.legacy-games.net" without quotes.
- If you can not change the file right click -> properties -> remove read only tick.
- Start the game client using WoW.exe, not Launcher.exe
- Log in using your Legacy-Games account name (from registration) , not email address
If you already have a client from elsewhere, change the realmlist.wtf to:
set realmlist logon.legacy-games.net