BUG – when I set ReportBuilder 3 (SQL 2008R2) to http://sp10.cstudio.com
from Internet client – WIN7. In sp10.cstudio.com – I can
build report/get to data – WITHOUT ANY AUTHENTICATION. Connecting to SharePoint
2010 and SQL 2008R2 from Internet client. Anonymous access to SP10 is NOT
is NO trusted connection in IE and PC is not on the LAN. The issue could be Reporting
Services Configuration execution account is admin on both SP10 and SQL 2008 R2.
Can you try it with IE In-Private browsing to see if you still see the issue?