SCCM 2012 R2 CU2 Can't Edit WMI Query Code in Report Builder

Question

I first posted this in the SCCM but the issue is not solved so I thought I'd try here in the SQL Reporting forum. Original thread here: http://social.technet.microsoft.com/Forums/en-US/b0a6ca3d-7471-4b49-8447-7403a65c2ec0/sccm-2012-r2-cu2-cant-edit-wmi-query-code-in-sccm-reports?forum=configmanagergeneral
I'll repost info here to make this easier.....
I built a new SCCM 2012 R2 CU2 suite on Server 2012 R2. This also uses SQL 2012 SP1 CU6. This suite has 4 servers: site server, two for WSUS and secondary DPs, and SQL. This problem is true for the built in reports and my custom reports. Our SQL guy has
been helping me a lot but we've gotten nowhere. I can run a report. I can open one in edit mode after it prompts me for credentials. It loads Report Builder 3.0. But when I go to a dataset/query, enter credentials, and try to open it, I get a popup that
says "Unable to connect to data source. 'AutoGen_5C6358F2_yayak..." When I click on details it says "The target principal name is incorrect. A connection was succesfully established with the server, but then an error occurred during the login
process.  (SSL Provider, error: 0 -The target principal name is incorrect.)" In SQL Reporting Services Config Manager the paths for Web Service URL is
http://ip.ip.ip.ip:80/ReportServer_SC01 and for Report Manager URL:
http://ip.ip.ip.ip:80/Reports_SC01. A domain account is used to login. This happens when you r-click a dataset and select query to edit the code of a dataset, ie, when query designer tries to open up. It happens
in both Admin Console and when using the Report Manager URL within SQL SSRS. All other functions of using edit mode of a report work fine.
Ben JohnsonWY

Answer 1

When I do that, browse is dimmed out.
But, if I deselect "create a data set" and click "choose an existing dataset in this report..." there is no data connection at the end.
But if I don't use report builder and instead use IE to browse to my ConfigMgr_ABC, I do see the connection at the end: {123...}.
This problem is on a network that is not on the 'net, so it's hard to do screen shots, so I'll reproduce this problem step by step:
I pick a report to edit, it doesn't matter which one.
If I try it in Admin Console, I right-click, Edit the report, it asks me for a login, I login, then I get a popup that says "Cannot continue. The application is improperly formatted. Contact the vendor for assistance. I click the Details button and
get a long set of text but the key part is "Your web browser settings do not allow you to run signed applications." This msg didn't appear before, so something changed, so I will investigate. I think it used to give a SPN error.
If I use IE within report builder and navigate to whatever report, click open, everything works, except, when I click on Dataset0 (the key one I normally need to edit), click query, it prompts me for a login and no matter which one I use, i get a popup that
says "unable to connect to data source 'AutoGen_123...'". If I click details I get "the targe principal name is incorrect. A connection was successfully established with the server, but then an error occurred during the login process. (provider:
SSL Provider 0-The target principal name is incorrect.)
Ben JohnsonWY