Is it possible to share Internet Fiber ethernet thru an ethernet switch?

[rchrdfrdmn]

I have Sonic Fiber and two Eero units.
Is it possible to insert an ethernet switch (router) to split the signal coming from the fiber modem into one ethernet connection that goes directly to a desktop system and another that goes to the Eero gateway unit?
I'm asking because I tried it and the direct-to-desktop ethernet can't seem to connect to the internet.
(The reason for wanting to do this is the distances between units.)

Is there a way to do this?

Can I put the ethernet switch/router after the Eero gateway and share that signal between two desktops?

[virtualmike]

The primary Eero device needs to be connected to the ONT. It will control all the household connections.

I believe the Eero should have at least one "LAN port," to which you can connect a switch via ethernet. You can then plug various devices into the switch. If the secondary Eero device has an Ethernet port on it, it can be connected to the switch as well (assuming you are able to run a quality CAT6 Ethernet cable between the switch and the second Eero.

[rchrdfrdmn]

Thanks. That's what I've concluded. But before I start plugging and unplugging, and running cable I just wanted to make sure. The first configuration, splitting the ethernet coming from the ONT with an ethernet switch, clearly doesn't work.
So plan B is to split the ethernet coming out of the directly-connected Eero gateway.
But that will need some cable-pulling. Something to think thru carefully and plan.
Worth trying.
Thanks.

[rchrdfrdmn]

Just verified that putting the ethernet router/splitter after the Eero gateway works! I am now able to directly connect two computers to the internet via ethernet cable, and use the two Eero units for wi-fi. Both computers are getting 900+ Mbps.

[dane]

Neato!