Upgrade ethernet mesh home network with EasyMesh/Deco
Hi, Thanks for your time and patience. Maybe you could try to leave me a message for notification next time.
I'm sorry for the typo and it is "can't". I thought you used all the blank bold lines to represent the Ethernet connection.
There aren't many discrepancies and the technical support does have his highlights and focus.
I believe since you decided to seek confirmation in the community, you do want to compare different ideas. From my review, the key point is whether you refer to Easymesh or Deco Mesh.
Considering you already have an Easymesh router-Archer AX20(AX1800), it is natural to keep EasyMesh and add several EasyMesh extenders. Connecting the extenders wirelessly to the AX20 is the default Method to establish an EasyMesh network. While Ethernet/wired Backhaul is the newly added feature for EasyMesh, such as the introduction here-
EasyMesh Range Extenders Start Supporting Building a EasyMesh Network via Ethernet Backhaul.
RE315 happens to be one of the fewer supported models. You could add 2*RE315s into EasyMesh via Ethernet Cables and the 3rd is via WiFi. Of course, each RE315 will be connected directly to the EasyMesh router AX20, not like "AX20---RE315---RE315".
For the Deco Mesh recommendation, the technical support and I both agreed Deco in Access Point mode would be the best configuration.
However, I realized the support might think you plan to set up a different Deco Mesh network in each house, House 1 with AX20+2*Deco M4 and House 2 with a single Deco. It would be a misunderstanding. We could add all the 3*Deco M4s(or more, 2 sets as you mentioned) in two houses together under the same Deco Mesh network.
Best regards.