dataset uploaded to app.powerbi.com refreshes under my ID, but other user gets Credentials Invalid

I am using Microsoft Dynamics NAV 2017 with an on premise sql server.  Connecting Power BI to the server via OData.  I've created a .pbix file that refreshes fine on my desktop and also when i upload it to app.powerbi.com via the gateway I've setup.  However, I have a user whose role is to manage reporting.  I have the .pbix file where it will refresh on her desktop, but via her login into app.powerbi.com, it fails.  The Gateway that i've setup for my company test "Online.  You are good to go."  But, when I try to manually refresh the dataset, i receive the Data Source Credentials error "Your data source can't be refreshed because the credentials are invalid.  Please udpate your credentials and try again."  It then shows 15 or so OData errors with an x and Edit Credentials as a hyperlink.  I've tried changeing the credentials in Anonymous, Windows, Basic & Key.  I've tried all versions of super user.  I've mimicked the exact same setup as my credentials that work.  Help!