DownloadFile creates 0-byte files

Whenever I use WebClient.DownloadFile(), the resulting file length is always 0 bytes. I've tried files from different websites 开发者_开发知识库including my own IIS locally, always get a 0-byte length file. When clicking the filename in the browser (Chrome), the file downloads correctly.

string fileName = @"us_ysera_tier11.json.gz";
string remoteUri = @"http://wowprogress.com/exports/ranks/" + fileName;

if (!File.Exists(fileName))
{
    using (WebClient webClient = new WebClient())
    {
        webClient.UseDefaultCredentials = true;
        webClient.DownloadFile(remoteUri, fileName);
    }
}

Am I doing something generally wrong, or can someone point me to a working example?

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This code downloads a 5K file on my machine. I updated the filename and remoteUri values.

string fileName = "us_ysera_tier11.json.gz";
string remoteUri = "http://www.wowprogress.com/export/ranks/" + fileName;
WebClient webClient = new WebClient();
webClient.Headers["Accept-Encoding"] = "application/x-gzip";
webClient.DownloadFile(remoteUri, fileName);