The controller is new here and I am still testing all its features.  One thing that I have noticed is that the Clients list and the corresponding site map are not always accurate.  In my case, I have two identical smart TVs on a separate TV VLAN.  Each is downstream from the router, going through 2 switches and each receives its reserved IP address correctly.  They also stream OK from the internet.  the layout is as follows:

Router ---> SG2008 (Main) ---> SG2208 (Office) ---> TV 1

Router ---> SG2008(Main) ---> SG2008 (Salon) ---> TV 2

Router ---> SG2008 (Main) ---> Controller

One TV (in the Office area) always shows up correctly in the Clients list and on the map.  The other TV either does not show up at all or it is displayed as being connected to the Main switch and not the downstream switch.

I also noticed that my main PC never shows up in the Clients list or appears on the map.  It, like the TVs, is downstream through 2 switches.  If this is a bug, it is a minor one.