Symptoms
You have lots of active subscriptions in Microsoft SQL Server Reporting Services 2012 (SSRS 2012) or SQL Server Reporting Services 2014 (SSRS 2014). When you click the "My Subscription" link in Report Manager, the My Subscription page does not open immediately or does not open at all. Additionally, you receive the following error message:
This page cannot be displayed
Resolution
Cumulative Update information
This issue was first fixed in the following cumulative update 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:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.