HTTP 416 Range Not Satisfiable means the server cannot serve the requested byte range. The Range header specifies a portion of the resource that does not exist — typically because the requested range extends beyond the resource's actual size.
The requested byte range start or end exceeds the total size of the resource.
The file size changed after the initial request, making the previously valid range invalid.
The response includes a Content-Range header showing the actual resource size.
Send a HEAD request first to get the Content-Length, then request a range within that size.
curl -I https://example.com/file.zip
Remove the Range header to download the complete resource.