RBR wouldn't list it as a SATELLITE

That switch is a smart switch and also has green ethernet features which has been know to cause problems in the past. Possible new FW may have made that incompatible. Any WEB UI adjustments on this switch that you can disable Green Ethernet to test this? 

I recommend if you can't get the RBS to sync correctly, Factory reset the RBR AND RBS, when you get the system alone. Have the RBS in the same room as the RBR. Setup the RBR first, walk thru the setup wizard using web browser here. Clear browser caches before starting the setup wizard. Use MS Edge. Leave the default SSID name and password for now. Once the RBR is setup, sync the RBS wirelessly to the RBR. (One item I noticed with mine, if I FR the RBR and RBS and leave the RBR and RBS alone, the RBS will auto sync to the RBRs default SSID and PW here. I can then walk thru the setup wizard and it will see and detect the RBS during this routine. You can try this or>) Use the RBRs Add Satellite menu fuction to do this. Follow the sync steps here. Once the RBS syncs to the RBR, check the RBRs web page here to see if it shows being connected as a RBS and not a different device. Wireless status should appear and should show as GOOD. Check the LED on the RBS. Should be BLUE here for several minutes. Then turn OFF. Once it turns OFF, connect a ethernet patch cable between the RBS and RBR while it's in the same room. Front LED should turn ON again, I think BLUE is connection is good. Check the RBRs web page every so often. The connection status should change to wired and still be GOOD in with about 1 minute. 

If you can get to this point, then change the SSID name and password for your needs. Apply the change. RBS should make the change as well. Log into it's web page and check the status on it's web page as well. If it's still good at this point, power OFF the RBS and put back in remote location. Check its status after 5 minutes on the RBR.