What it means

A 416 Range Not Satisfiable response means the client requested a portion of a file that does not exist, typically a range beyond the file's actual size.

Common causes

• A Range header requested bytes outside the file's size.
• A download manager or video player requested an invalid range.

How to fix it

• Request a valid range within the file's actual size.
• Check the Content-Length of the resource before requesting a range.