Board Thread:Administrator Noticeboard/@comment-27.99.16.182-20150209091703/@comment-2158701-20150210014728

The official launcher always bugs on downloading for me too, and that's why I stopped using it long ago.

Use MultiMC instead. You'll still need to download TC once so you can move the files over to MultiMC to launch, but it will never bug up or otherwise make starting it a pain.

If you really still can't download it after more tries, I suppose I could just upload a copy of my TC files also.