下載文件HTTP不工作，但在工作的HTTPS罰款

Question

我有以下情形下載文件形式服務器：

• 我試圖從服務器通過HTTP下載多個文件（但不是SSL）在ASP.NET頁面中，但其中一個文件未被下載;它返回一個錯誤：operation timeout。

• 當我嘗試通過HTTPS下載此文件時，它運行良好。

• 我試圖使用普通HTTP使用其他軟件下載文件，並且收到相同的錯誤消息。

我非常感謝任何指導或幫助。

Answer 1

if (The file is executable file)

May be because the web server for some EXE files resides on doesn't send a
Content-Length header. If this header is absent, the only way you can determine if the download is complete is "when the bytes stop coming", i.e. the TCP/IP connection is closed or times out. If the connection quality is low, this may very well happen prematurely.

But why this not happened in Https? Thats because http has bigger waiting time and smaller receiving time. https on the other hand has smaller waiting time and bigger receiving time.

The http port on the shared hosting server is more busy, thus a request stays longer in the queue until is accepted by the server.

On the https port there is less traffic on the server so the request is serviced faster.