The Device Is Not Allowing A Connection... :/

WD Legacy Products My Book Live Duo
2

Not sure what you’re talking about.

I Googled that message, and the only thing that appears is this post.    Exactly what is giving you that message?  Your PC?  Some software app?  

You’re definitely not doing things “by the book” if you’re trying to plug in via USB, as that’s not even possible…