I'd been following Steve Gibson's Three Dumb Router solution to IOT insecurity. But I've also come across several discussions of using Ubiquiti's EdgeRouter X.
My equipment closet had become a rat's nest with long Ethernet cables wadded up behind all the equipment. Of course they were either not labeled or had the wrong labels on them.
So I redesigned my LAN segmenting it into a home (safe) network and Internet of Things (IoT) (unsafe) devices.
I bought color coded patch cables from Monoprice - red for Internet, green for home and blue for IoT.
To manage the connections to each segment I added a 8-port Gigabit switch to each segment.
I haven't implemented the EdgeRouter X yet so I'm actually not yet isolating the 2 segments. The dashed lines represent the current configuration.
Update: Did you find the problem in this configuration? Look again. Look closer. Then scroll down.
The NETGEAR ProSafe FS108NA is 10/100 mbps, not gigabit. I discovered this when I copied a large amount of data to the Drobo 5N. It was SLOW.
I have since replaced the NETGEAR with a D-Link GO-SW-8GE.