SCOM 2012 R2 Data Warehouse failed to request a list of management packs from SQL RS server

Question

Hello, I get this alert can someone help me out ?
I did check the Proxy and is configured on all the MS and DW server.
Alert Description
Data Warehouse failed to request a list of management packs which contain
reports deployed to SQL Reporting Services Server. Report deployment process
failed to request management pack list from SQL RS Server. The operation will be
retried.
Exception 'WebException': The request failed with HTTP status 407:
Proxy Authentication Required ( Forefront TMG requires authorization to fulfill
the request. Access to the Web Proxy filter is denied. ).
One or more
workflows were affected by this.
Workflow name:
Microsoft.SystemCenter.DataWarehouse.Deployment.Report
Instance name:
Data Warehouse Synchronization Service
Instance ID:
{FDC7C774-397C-3660-9D57-EFBED3B60329}

Answer 1

Every call to the SRS generates a call to the OpsMgr SDK on Root Management
Server to check permissions (security integration). It apepars the account
the call is made under does not have access.
To figure out which account is used follow this process:
1) Run console and click on "Run As Profiles" in the Administration space;
2) Double-click "Data Warehouse Report Deployment Account";
3) Click on "Run As Accounts" tab;
4) If you have a line in the accounts which lists your Root Management
Server in the "Target Computer" column, note the account name in the "Run As
Account" column. If you do not have such a line, follow steps 2-4 for the
"Default Action Account" profile and note the account name;
5) Click on "Run-As Accounts" in the Administration space and double click
the account name which you got on step 4)
6) Switch to the "Account" tab and note domain name and user name;
Once you found the account (say, DOMAIN\user) check that it is a member of
the User Role "Operations manager Report Security Administrators". If not -
add it and the process will recover automatically.
Also You can refer below links
http://blogs.technet.com/b/smsandmom/archive/2007/09/06/system-center-operations-manager-doesn-t-show-any-reports.aspx
http://www.networksteve.com/enterprise/topic.php/Data_Warehouse_failed_to_request_a_list_of_management_packs..._E/?TopicId=16627&Posts=2
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question, please click "Mark As Answer"