[JNRW]

I hope someone can help me. An Android box I have has its own in-built Netflix app, which works perfectly. However, if I use my very much preferred method of watching Netflix, which is by using the Kodi add-on, I get a Playback error message, which says;

Netflix returned the following error:
Request failed validation during key exchange

My question is, why can Netflix work satisfactorily through the app yet, on the same box, not work within Kodi? The error message appears on trying to start a stream.

Thank you.