I have the SG2016P managed switch in my utility room.  Cable plugged into port 12 runs to my Great Room entertainment center.  There I have an unmanaged switch connected to my Roku, TV, Receiver and Blu-ray player.

Everything works fine, but when I look at the client stats for upload/download by device, I notice that it claims my receiver has downloaded 12GB and uploaded 265MB while the other devices, even the Roku, have downloaded and uploaded exactly 0 Bytes.  That's clearly not correct.

In fact, I notice this exact same thing for my basement entertainment center and my office.  Each has an unmanaged switch with multiple devices connected and all traffic seems to be arbitrarily associated with just one of the devices.

Is this expected behavior?  Not that it's a huge deal...   Assuming I wanted to fix this, is the only way to replace each of the unmanaged switches with a managed switch?