HL7 Soup Licensing Proxy error

I was attempting to license HL7 Soup and Integration Host on a hospital network, but I was getting an error preventing the license number from activating.

The problem was that the calls went through a proxy server.

The solution was to open the .config file for each app and uncomment the section that tells the proxy server to use the default credentials.

 <system.net>

    <defaultProxy useDefaultCredentials="true">

    </defaultProxy>

  </system.net>

This isn't credentials for calling the server, just the proxy server.