I am on a long discussion with our ISP. Their service is very bad, but for some unfortunate reason we can't change them for a long time. So, everytime our internet speed drops to zero, I have to call them and receive the same response: Your internal bandwidth consumption is at 100%, check if somebody is depleting it.
I know that nobody uses that much (2Mb) and I did checked personally some times, so I think there is something else that I can't tell. Maybe it's my bad internet service? How can I see whom on my network consumes so much?
We are on Windows 2008 R2 AD, and we use Forefront TMG Standard 2010.