Hi Tim, i'm Timon and i'm glad to help you.
Windows resource monitor may help you.
To launch Resource monitor, hit Windows key and type resource monitor OR resmon.
In the network tab, take a look at the Processes with Network Activity section.
Here you find a list of programs you are running, programs that are connecting to your network and the internet.
One useful thing that you can do in this tab is to select only one process or a group of processes you are interested in, and the data in the lower sections are automatically filtered, so that you can see the Network Activity, TCP Connections or Listening Ports, only for the selection you made.