Error [11004][30406]

Launcher was working just fine while downloading patch. Patch completes, play button lights up. Soon upon loading game, after trying to load server info, Lobby Server encounters an error, game crashes. Upon trying to restart, I get this message:

Unable to download patch file.
[11004][30406]

Anyone else having this particular error, or know a remedy for it? Quite the dang bummer.

Nevermind, fixed it. Problem was Internet Explorer 11. I went back to IE 10, and game started up just fine. Amazing how Internet Explorer can have such an impact on your system, even if you don't use it.