Why doesn't Helvetica Neue Cyr UltraLight work on Windows?

Question

css

Hello.
Tell me how to correctly connect this font so that it works

@font-face {
    font-family: 'HelveticaNeueCyrUl';
    src: url('HelveticaNeueCyr-UltraLight.eot');
    src: url('HelveticaNeueCyr-UltraLight.eot?#iefix') format('embedded-opentype'),
         url('HelveticaNeueCyr-UltraLight.woff') format('woff'),
         url('HelveticaNeueCyr-UltraLight.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

I converted the font here http://everythingfonts.com, since the "squirrel" does not allow you to convert a paid font.
The source was in otf format.
I tried to replace it with Open Sans Light, the boldness of the text is still different, so it is not suitable as an alternative.

Answer 1

What do you mean it doesn't work? Is a different font rendered, or is it rendered differently than you would like?

Answer 2

See how
@font-face {
font-family: 'HelveticaNeueCyr';
src: url('/fonts/helveticaneuecyr-light-webfont.eot') format('embedded-opentype'),
url('/fonts/helveticaneuecyr-light-webfont.woff2') format('woff2'),
url( '/fonts/helveticaneuecyr-light-webfont.woff') format('woff'),
url('/fonts/helveticaneuecyr-light-webfont.ttf') format('truetype'),
url('/fonts/helveticaneuecyr- light-webfont.svg#helveticaneuecyrlight') format('svg');
font-weight:300;
font-style:light;
}

Answer 3

There are broken fonts, he himself came across a bunch of times. Just download from another source