When you use Microsoft SQL Server 2016 Reporting Services (SSRS 2016) by using the keyboard together with an assistive technology tool, you may encounter the following issues:
When you open a report, there's no feedback while the report is being loaded.
When you create or edit a KPI in a report, the assistive technology tool can't read the Browse buttons (…) correctly.
When you browse to a link in a table, there's no alternative text that can be read by the assistive technology tool.
Cumulative Update information
These issues were first fixed in the following cumulative update of SQL Server.
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. We recommend that you download and install the latest cumulative updates for SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.