I just got a deco xe75 pro 3 node system. 

one satellite is using hardwire back haul, the other is using WiFi. 
 

the system setup fine and seems to be generally working, but some of my devices are dropping offline or seem to be performing very slowly. 
 

the devices in question are all ring devices. Cameras and a doorbell. 
 

all the ring devices are connected to the 2.5ghz iot network using its own ssid. I have most of my other smart devices connected to the iot network. 
 

I also have 2.5ghz, 5ghz, and 6ghz networks active on a single ssid. 
 

I've also noticed that my iPhone & iPad are very slow to connect to WiFi. 
 

my wired devices are working fine. 

any suggestion on where to look?

tia

david