Launcher won't connect to internet/let me login

I am running minecraft through a proxy using a .bat file (which has worked perfectly using the old launcher), but using the new launcher for 1.6.1(using the same .bat) , it doesn't download anything. Even if i manually download the Launcher.pack.lzma the dev console says (on attached txt) and the launcher shows (on attached jpg)

Thanks for your help, which would be kindly appreciated