Windows 8 - Launcher can't download remote file/Bootstrap fails

Tried several times to launch the game with the new launcher, but everytime I get a report saying that it is "Unable to download remote file." and I should "Check your internet connection/proxy settings."
It says: FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to download while being forced
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:82)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:361)

and asks me to restart.