halcylon I've installed the eero in a small self contained community and a few other places.  Probably 30 homes and a few businesses.  I've replaced ubiquit, netgear and other routers.  Not cheap models, commercial grade and top of the line other brand routers.  Far to much detail to go into but bottom line the eero performed the best and was easiest for the customer to deal with.  This comes from a couple years of screwing around with other brands.   I no longer mess around with anything but eero.  We had a resident with a nighthawk router and he had issues with streaming TV.  We swapped it out with eero and boom problem gone.  My point is, replace that netgear with an eero.  So it would be, modem to eero, eero to switch, switch to other eero.

Now with all that said.  I no longer recommend eero to customers who want support.  eero support is non existent.  I had called support numerous times and just walked away from the phone while I worked and come back hours later and I am still on hold.  Yes I said HOURS.  Absolutely ridiculous for the price they charge.

I had one eero that refused to go hardwired.  It finally did after HOURS of screwing with it.  Resetting, removing and reinstalling on the network.  However I've installed over 100 without issue.

Now recently the one at my office has stopped going hard wired after a power outage.  It's plugged into the network and if I power cycle it a couple dozen times, sometimes it might go hard wired.  Since there is no support the only option is to return it as defective.  

Good luck, I hope some of this information helps you!

halcylon it is entirely possible the crimps are bad. i had to recrimp almost all of mine. and some i've not been able to get a signal out of at all.

i have one beacon and get about 250mpbs from it. the others give me 800-850mbps in my 1gb connection (which tests out to 920ish usually).

Jsirgo You have to have an eero upstream of the switch and other devices.

Cable modem -> wired router (you don't have to have this, but sounds like you want it) -> eero -> switch -> other devices including eeros.

txgunlover I am sorry but that is not accurate.  You do not have to have an eero upstream.  You can have as many eero as you like wired in bridge mode.  My house is Modem > CISCO Router > Switch > 3 eero hard wired and all my other hard wired devices into that switch.  I have two homes running this way with the Cisco.  Another home the customer insisted on keeping his netgear first then 3 eero in bridge mode. 

Now, lets discuss my experience with these setups.  The two homes with the Cisco wired routers are there to for security and to create a constant VPN.  Those two systems work great.  The power flickers or goes out or the internet goes out or any other hickup...Everything comes back online it's self.  The one customer with the netgear wireless router doesn't work well at all.  I don't know what his configuration is or what else he has going on but his performance is poor.  I don't recommend mixing wireless devices in a home environment.  When we use all eero, we don't get service calls.

Sloppy so looks like cable modem -> wired router -> switch -> three bridge wired eeros will work!

I still get just one Wi-Fi network?  No device drop off as I move to/from eeros?  Setup as OP suggested?  That is first eero wired bridge then others wireless first then power down then wire in?

Jsirgo hardwire all the eero.  They will plug into the switch.  Just power them up and set them up with the app one at a time.  Only thing I don't recall is how you force them into bridge mode.  You can do it in the app it's just been so long I don't recall.  Also the app has changed.  I'm sure you can google the directions.

Jsirgo you also asked about moving from device to device as one network.  Yes, they just have to have the same SSID which they should automatically do that.  However I will tell you from my experience with many wireless networks that handing off your device from one router to another doesn't always work well.  I have moved from one room to another with my laptop for example.  I can move from a room with maybe half signal into a room with a router in it but it will not switch automatically.  It shows the signal barely existent and speed is terrible from the router in the area I just moved from.  But for some reason it just won't switch to the better signal automatically.  I lack the technical knowledge to know why.  I've experienced this with many different networks and devices, even eero.

speedthrills Range is not dependent on being hardwired.  Speed can be impacted, but not range.

txgunlover Thanks ! The question is can I have two hardwired Eero  Pro 6 on the same network? I have one hardwired currently but its not identified by the system as the "head unit", I tried replacing the "head unit" Eero 6 this morning with the Pro 6 and could not get it to be reconized by the system, the eero network went offline and wouldn't come back. I ended reverting and putting the original Feero 6 head unit back- hardwired as before and no issues, it came back online (with the new hard wired Eero 6 Pro working too. 

speedthrills Your saying eeor 6 and eero pro don't play nice on the same network?

speedthrills Wired and wireless mixed.  Wireless seems to run VERY poorly.  For some reason devices always want to use the wireless eero even though it is farther away.  I'm not convinced mesh is good unless it is all you have.  I've also had issues with live streaming TV services.

sloppydogdrool I notice that I've had issues with Roon enabled devices for audio streaming sometimes dropping off the network or, oddly, being connected to a wireless Eero 6 rooms away while being located 6 feet away from an eero. I've ended up trying to hardwire as much of the system as I can using switches sometimes to run CAT 5 lines off of to TV's and devices etc. 

I couldn't seem to get two Eero 6 Pro working - hard wired- at the same time though the older Eero 6 hard wired gets along fine with a single Eero 6 PRO hard wired? 

speedthrills The eero pro will work together hard wired.  The only issue I have had is there is one of my offices where I need the eero to be.  It REFUSES to go hardwired.  I even tried swapping around other eero which are working hard wired in other rooms.  So it has something to do with the networking in the room.  Now the wiring in that room could be the issues.  The erro wireless to a switch that wires to a wall plate that wires to another switch that wires to the switch in the panel that ties into the cable modem.  So it could be in your wiring like mine.  I mean process of elimination.  I put in other eeros that work hard wired in other offices and even took the original one that was not working and put it in another office and it goes hard wired there.  So that tell me it has to be the wiring in that office.

Jsirgo Great glad to hear it!  It's nice when things just work!  Overall the eero are the best in so far as grief free installation.  We get zero service calls on them.