This issue seems to have cropped up recently. I get to a certain point in the installer and get an error from my proxy:
Starting to install TinyTeX to T:\R\tinytex. It will take a few minutes. PATH=... "C:\Users\AppData\Local\Temp\1\Rtmpwrvk7m\install-tl-20180530\install-tl" -profile=../texlive.profile Automated TeX Live installation using profile: ../texlive.profile Loading http://mirrors.ibiblio.org/pub/mirrors/CTAN/systems/texlive/tlnet/tlpkg/texlive.tlpdb First directive needs to be 'name', not <HEAD><TITLE>Authentication Required</TITLE></HEAD> at C:/Users/AppData/Local/Temp/1/Rtmpwrvk7m/install-tl-20180530/tlpkg/TeXLive/TLPOBJ.pm line 104, <$retfh> line 1.
The last line is my proxy server responding when it hasn't been authenticated correctly. The thing is, I have the environment variable
http_proxy set, but the installer is not respecting it.
Edit: This issue also occurs when installing vanilla TeXLive from the .bat file