Possible solution for wired connection and smart switch

I guess if that works for you however that configuration may cause problems as well having that kind of connection configuration. Normal and standard cable connections in AP mode is to use the WAN port of the RBR to the main upstream host router or LAN switch. Then connect RBS directly to the RBR or with a switch in the middle, non green ethernet.

https://kb.netgear.com/000036466/How-far-should-I-place-my-Orbi-satellite-from-my-Orbi-router

This is how i have mine currently and thought I only have 1 RBS50, this same configuration works for my RBK850 series with two RBS ethernet connected while in AP mode. I have 3 switches in daisy chain to one RBS850 in the basement. 

Managed switches can be used however ALL IGMP protocols need to be disabled on the managed switch if one is the middle man between the RBR and RBS. Some managed switches you can disable green ethernet. For those switches were you can't disable green ethernet, then users should see if the switch works with the system and if not, try a different switch or find a switch that doesn't have green ethernet features. Others have reported that NGs GS-105/108 seems to work. I can report that D-Links DGS-105/108s work as well as HPs procurve 1400/1800 series switches.

For the most part using the normal and standard ethernet configuration with LAN switches works with out doing other kinds of cable configurations.