[eluser]Patrick Truyens[/eluser]
Can you check what your server timeout values (ConnectionTimeout, HeaderWaitTimeout, and MinFileBytesPerSec) are?
ConnectionTimeout = 120 seconds, HTTP Keep-Alives is enabled.
HeaderWaitTimeout and MinFileBytesPerSec: I suppose they have their standard values, as I don't know how to change them.
I tried already to disable the HTTP Keep-Alive, but no success.