WoW launcher and downloader causing validation errors [Updated]

I and many tipsters have encountered some issues tonight when trying to launch the game.

Here's what we know:
  • The Launcher is downloading something small.
  • It is taking much longer than the 2 minutes estimated.
  • Sometimes the download fails.
  • Once the "something" has been downloaded, some are getting "unable to validate game version".
  • Constant attempts to log in appear to make the error go away.
  • There is no indication of what has been downloaded.
Here's what we don't know: What was downloaded.

We will update you as soon as we know anything.

Please note: There is no indication patch 3.3 is dropping. NONE.

Update 8:55pm:
Blizzard says that the downloading issues are due to "prime time" and gives some advice in this link, mostly suggesting to wait.

Update 8:44pm:
Blizzard is calling this a "Tools Patch" and saying that "Safe Mode with Networking" is solving some people's problems. Obviously the issues are not fixed.

Update 8:30pm:
Blizzard says they have fixed the issues. Anyone still having problems should take the steps outlined in this link.

This article was originally published on WoW Insider.