Thank you very much for your report and explain about this issue.
As you know, We tried to restrict the bandwidth by policies.
We always watch FORTIANALIZER report and we blocked to bad affect website.
After blocking these website, we convinced to reduce our traffic. But in fact, Usability
are still no good.
We will talk to Ishiki-san and we try to stop Dropbox use next week.
(ATA-BP uses Dropbox to share the file.)
Thank you very much for your working.