I\'ve a issue consuming Dynamics Nav OData. I\'m using Visual Studio Community 2017 (version 15.9.0), and I\'ve installed the extension OData Connected Service (Official Mic
I had the same issue (I'm also working with Dynamics Nav ;) )
The problem is that OData Connected Service doesn't support authorization.
You need to save metadata file locally and point it when adding OData Service Reference.
For me it works perfectly.