We have a 5 user domain network with a Server 2012 domain controller. We have a 10MB leased line coming in to the office and users are frequently complaining that the internet literally slows down to a crawl then stops altogether. Numerous calls to the ISP have been fruitless and they keep saying that we are simply "maxing out" the available bandwidth. We have 1 or maybe 2 people that stream music as part of their jobs but other than that the connection is just used for email and general web browsing so shouldn't be maxing out. We have run a full virus sweep of the server and all connected PC's but the next step is to find out if the server itself is doing something to hog all of the bandwidth. Can anyone please suggest a tool we can use to easily determine what is going on? We tried Wireshark but found the results rather overwhelming and baffling. Just want to know what the server is doing in terms of internet use really. Any suggestions please?