Web Service Problem! URLs are basically broken.

Question

We recently updated our SQL Server 2012 SSRS implimentation from 11.0.3339 (SP1 CU2) to 11.0.3381 (SP1 CU6).   We are on Server 2008 R2 SP1.  I am pretty certain that this is related to the Cumulative update since I have 6 seperate
and entire clusters doing the same exact thing but I can't find a fix on CU7. 
Two symptoms started popping up pointing to a problem with the SSRS Web service.
Symptom 1
1. Before the change, our emailed SSRS subscriptions were sent out with a valid link, now they error out.
Reporting Services Error
An error occurred in the HTTP Runtime object for application domain ReportServer_MSSQLSERVER_0-96-130358835578081507. Most likely, the HTTP request contains an unsupported verb or invalid syntax. (rsHttpRuntimeError) Get Online Help
Unable to validate data.
SQL Server Reporting Services
2. Before the change you could drill down our SSRS URL through the web service. 
http://servername/reportserver/folder/report and then when you click on a report name, it would display the report, like you'd expect for the web service.  Now you get this error:
Reporting Services Error
An error occurred in the HTTP Runtime object for application domain ReportServer_MSSQLSERVER_0-27-130358853340658138. Most likely, the HTTP request contains an unsupported verb or invalid syntax. (rsHttpRuntimeError) Get Online Help
Unable to validate data.
SQL Server Reporting Services
Can anyone else reproduce it or better yet do you know of a fix?
Thanks,
Keith

Answer 1

Hi Keith,
The issue may be due to Federal Information Processing Standard (FIPS) was enabled on SSRS server. Please refer to the following steps to fix the issue:
Use Notepad to open the web.config file of Report Server and Report Manager. In SSRS 2012, the default location is: C:\Program Files\Microsoft SQL Server\MSRS11.MSSQLSERVER\Reporting Services\ReportServer
(Note: Please backup the file before modify it.)
Add the following <machineKey> section in the <system.web> section:
<machineKey validationKey="AutoGenerate,IsolateApps" decryptionKey="AutoGenerate,IsolateApps" validation="3DES" decryption="3DES"/>
Reference: http://support.microsoft.com/kb/911722/en-us
Hope this helps.
Regards,
Alisa Tang
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Alisa Tang
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