Well you can always download a network monitor...I suggest Nework Monitor v3.1 because it is straight from Microsoft, though there are many other free network monitors available over the internet.
Alternatively, you can use the netstat command to see all open connections. The downside to netstat is it will not tell you which connection is using the majority of the bandwidth.
One other question, are you using a wireless router? or could there be another PC on your network?
Alternatively, you can use the netstat command to see all open connections. The downside to netstat is it will not tell you which connection is using the majority of the bandwidth.
One other question, are you using a wireless router? or could there be another PC on your network?