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    <blockquote type="cite"
cite="mid:CAOE+yMi1__peM3fhGxgisbR=dV6Zv_vAfwanS2wBFCgEPw3wxQ@mail.gmail.com">
      <pre wrap="">On Wed, 17 Oct 2018 at 04:17, Norbert Preining <a class="moz-txt-link-rfc2396E" href="mailto:preining@logic.at"><preining@logic.at></a> wrote:
</pre>
      <blockquote type="cite">
        <pre wrap="">
Hi,

something is blocking access to all our trials. The logs show that LWP,
curl, and wget failed :-(((

Can you try
        curl --user-agent texlive/curl --location <a class="moz-txt-link-freetext" href="http://www.ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://www.ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a>
and show us the output?

Norbert
</pre>
      </blockquote>
    </blockquote>
    <br>
    I don't have access to "curl" (nor do I know what it is or does) but
    attempting your suggestion with "wget" yields the following success
    report :<br>
    <br>
    <blockquote type="cite">D:\Temp > wget -S
<a class="moz-txt-link-freetext" href="http://www.ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://www.ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a>
      --no-check-certificate<br>
      --user-agent=texlive/curl<br>
      SYSTEM_WGETRC = c:/progra~1/wget/etc/wgetrc<br>
      syswgetrc = C:\Program Files (x86)\GnuWin32/etc/wgetrc<br>
      --2018-10-17 13:40:22-- 
<a class="moz-txt-link-freetext" href="http://www.ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://www.ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a><br>
      Resolving <a class="moz-txt-link-abbreviated" href="http://www.ctan.org">www.ctan.org</a>... 176.28.54.184<br>
      Connecting to www.ctan.org|176.28.54.184|:80... connected.<br>
      HTTP request sent, awaiting response...<br>
        HTTP/1.1 302 Found<br>
        Date: Wed, 17 Oct 2018 12:40:12 GMT<br>
        Server: Apache/2<br>
        X-Frame-Options: SAMEORIGIN<br>
        X-Xss-Protection: 1; mode=block<br>
        X-Content-Type-Options: nosniff<br>
        Location:
<a class="moz-txt-link-freetext" href="https://ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">https://ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a><br>
        Vary: Accept-Encoding<br>
        Content-Length: 365<br>
        Keep-Alive: timeout=15, max=50<br>
        Connection: Keep-Alive<br>
        Content-Type: text/html; charset=iso-8859-1<br>
      Location:
<a class="moz-txt-link-freetext" href="https://ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">https://ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a>
      [following]<br>
      --2018-10-17 13:40:22-- 
<a class="moz-txt-link-freetext" href="https://ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">https://ctan.org/tex-archive/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a><br>
      Resolving ctan.org... 176.28.54.184<br>
      Connecting to ctan.org|176.28.54.184|:443... connected.<br>
      WARNING: cannot verify ctan.org's certificate, issued by
      `/C=US/ST=Arizona/L=Scottsdale/O=Starfield Technologies,
      Inc./OU=<a class="moz-txt-link-freetext" href="http://cer">http://cer</a><br>
      ts.starfieldtech.com/repository//CN=Starfield Secure Certificate
      Authority - G2':<br>
        Self-signed certificate encountered.<br>
      WARNING: certificate common name `*.dante.de' doesn't match
      requested host name `ctan.org'.<br>
      HTTP request sent, awaiting response...<br>
        HTTP/1.1 302 Found<br>
        Date: Wed, 17 Oct 2018 12:40:12 GMT<br>
        X-Frame-Options: SAMEORIGIN<br>
        X-Xss-Protection: 1; mode=block<br>
        X-Content-Type-Options: nosniff<br>
        Location:
      <a class="moz-txt-link-freetext" href="http://mirrors.ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://mirrors.ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a><br>
        Content-Length: 0<br>
        Keep-Alive: timeout=15, max=50<br>
        Connection: Keep-Alive<br>
        Content-Type: text/plain<br>
      Location:
      <a class="moz-txt-link-freetext" href="http://mirrors.ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://mirrors.ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a>
      [following]<br>
      --2018-10-17 13:40:22-- 
      <a class="moz-txt-link-freetext" href="http://mirrors.ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://mirrors.ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a><br>
      Resolving mirrors.ctan.org... 176.28.54.184<br>
      Connecting to mirrors.ctan.org|176.28.54.184|:80... connected.<br>
      HTTP request sent, awaiting response...<br>
        HTTP/1.1 302 Found<br>
        Date: Wed, 17 Oct 2018 12:40:12 GMT<br>
        Server: Apache/2<br>
        X-Frame-Options: SAMEORIGIN<br>
        X-Xss-Protection: 1; mode=block<br>
        X-Content-Type-Options: nosniff<br>
        Location:
<a class="moz-txt-link-freetext" href="http://mirror.ox.ac.uk/sites/ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://mirror.ox.ac.uk/sites/ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a><br>
        Vary: Accept-Encoding<br>
        Content-Length: 373<br>
        Keep-Alive: timeout=15, max=50<br>
        Connection: Keep-Alive<br>
        Content-Type: text/html; charset=iso-8859-1<br>
      Location:
<a class="moz-txt-link-freetext" href="http://mirror.ox.ac.uk/sites/ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://mirror.ox.ac.uk/sites/ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a>
      [following]<br>
      --2018-10-17 13:40:22-- 
<a class="moz-txt-link-freetext" href="http://mirror.ox.ac.uk/sites/ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512">http://mirror.ox.ac.uk/sites/ctan.org/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512</a><br>
      Resolving mirror.ox.ac.uk... 163.1.160.163, 163.1.221.67<br>
      Connecting to mirror.ox.ac.uk|163.1.160.163|:80... connected.<br>
      HTTP request sent, awaiting response...<br>
        HTTP/1.1 200 OK<br>
        Date: Wed, 17 Oct 2018 12:40:12 GMT<br>
        Server: Apache/2.2.22 (Debian)<br>
        Last-Modified: Wed, 17 Oct 2018 00:23:00 GMT<br>
        ETag: "1f427756-90-57861ac370100"<br>
        Accept-Ranges: bytes<br>
        Content-Length: 144<br>
        Keep-Alive: timeout=10, max=100<br>
        Connection: Keep-Alive<br>
        Content-Type: text/plain; charset=ISO-8859-1<br>
      Length: 144 [text/plain]<br>
      Saving to: `texlive.tlpdb.sha512.2'<br>
      <br>
100%[==========================================================================================>]
      144         --.-K/s   in 0s<br>
      <br>
      2018-10-17 13:40:22 (5.45 MB/s) - `texlive.tlpdb.sha512.2' saved
      [144/144]</blockquote>
    <br>
    Note that "--no-check-certificate" is required for success.<br>
    <br>
    <div class="moz-signature">-- <br>
      <img src="cid:part1.D18408F5.D36971BE@Rhul.Ac.Uk"
        alt="<Signature>"><br>
      Philip Taylor</div>
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