Why can't I sign into Xbox Music, Windows Phone 8.1?

[Birhang Limbu]

Can't Sign In Xbox Music, Windows Phone 8.1

I cannot sign in to Music, Xbox Music on my Lumia 1020.
I want to sync my music. :crying:

 

[Margaret Shoptaw]

I'm having the problem with my Lumina 830. Did you ever figure it out?