Orbi RBR20 slows wifi daily to 40mb/s.

Here is what I found so far in my case:

1. The slowdown only appears to affect wireless devices connected to the RBR20 router, not devices connected to either of the 2 RBS20 satellites

2. I have disconnected every WiFi client and wired device - starting with the Philips Hue hub and the Amazon Echo - the slow down on the RBR20 did not resolve

I did not reboot the router after every disconnect and wait a week while disconnected to see if it resolves. I just do not have that kind of time. If a device was saturating the WiFi causing the router slowdown, disconnecting it should show the problem resolved.

So, I really don't think any of my devices are saturating the network and causing the slowdown.