Centralized Reporting Is Enabled Properly But Not Working
Problem
You have enabled centralized web reporting as directed, but it is not working.
Solution
If there is no disk space allocated for reporting, centralized web reporting will not work until disk space is allocated. As long as the quota you are setting the Web Reporting and Tracking to is larger than the currently used disk space, you will not lose any Web Reporting and Tracking data. See the Managing Disk Space, for more information.