Assume that you have a Master Data Services (MDS) database in Microsoft SQL Server 2016 Service Pack 1, Service Pack 2 or SQL Server 2017. When you try to connect to the MDS database by using the MDS Add-in for Microsoft Excel, the connection is unsuccessful.
This issue is fixed in the fowllowing cumulative updates for SQL Server:
Cumulative Update 4 for SQL Server 2016 Service Pack 2
About SQL Server builds
Each new build for SQL Server 2016 contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology Microsoft uses to describe software updates.