It might just be me, but how do you download FFmpeg? I don’t seem to be able to connect to the LAME download page.
download and run [u]ffmpeg-win-2.2.2.exe[/u] to install it.
(You no longer need to install LAME. It’s now built-into Audacity.)
Google/Firefox/Edge can’t connect to lame.buanzo.org not sure what is blocking it.
Working fine for me with Firefox and Chrome browsers. Perhaps there was a temporary connection problem.