Ensure the client is requesting data types ( Accept header) that the server actually provides.
The 406 error frequently arises due to a mismatch between requested and available content types, according to Error404.atomseo.com . 406 mp4
For Content Management Systems like WordPress, deactivate plugins that might modify HTTP headers. Ensure the client is requesting data types (
This paper explores the status code, a client-side error indicating that a server cannot fulfill a request based on the acceptable content types defined by the client. Understanding the 406 Not Acceptable Error 406 mp4