"HTTP 503: Service unavailable" error when you open the SSRS web portal after you upgrade to SSRS 2016
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:
About cumulative updates for 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. Check out 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.
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Article ID: 3171040 - Last Review: 07/25/2016 21:37:00 - Revision: 1.0
Microsoft SQL Server 2016 Developer, Microsoft SQL Server 2016 Enterprise, Microsoft SQL Server 2016 Standard
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