I’m not even sure if this is possible but, I have tried to connect the 2 satellite decos with cat 6 Ethernet cable (run through the house) to the main deco, and it doesn’t seem to work. My speeds are insanely slow compared to my previous setup 20mbps vs 700mbps  (which was Netgear orbi, all of which were connected wirelessly connected.) I have them all connected to an Ethernet switch (NETGEAR 16-Port Gigabit Ethernet Unmanaged PoE+ Switch (GS316P)) (with an Ethernet cable going from the modem to the main deco, of course) but it seems that they aren't using wired backhaul. What am I doing wrong? Is my switch compatible?

Thanks!