"HTTP 503: Service unavailable" error when you open the SSRS web portal after you upgrade to SSRS 2016

Gilt für: SQL Server 2016 DeveloperSQL Server 2016 EnterpriseSQL Server 2016 Standard


You upgrade an earlier version of SQL Server Reporting Services (SSRS) to SSRS 2016. When you open the SSRS web portal, you receive the following error message:
HTTP 503: Service Unavailable


The fix for this issue is included in the following cumulative update for 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  that Microsoft uses to describe software updates.