How do I determine what device is utilizing the majority of the bandwidth on a network?
Problem: Recently our phone system and internet has been dropping intermentently. I contact our ISP and they ran some test and they believe that everything is good on there end. They believe that there is a device or application that is consuming a majority fo the bandwidth and is causing our network problems. They also mentioned that maybe a device is doing some kind of broadcasting or maybe someone is streaming music or videos.
How do I determine what is causing the problem?