I browse several forums from time to time and today on a Movistar forum someone asked about RE700X compatibility with EasyMesh. Apparently, Movistar is beginning to implement EasyMesh in their home routers and a user asked if his RE700X devices would be compatible once his home router is upgraded with EasyMesh compatible firmware. The response from Movistar was the following (translated):

"From the devices group. they tell us that independently of the Home Gateway Unit (HGU) model and firmware that you have at home, the TP-LINK extenders (and they are not the only ones on the market) do not use the EasyMesh protocol in a standard way as Movistar does in its HGUs and Base Port devices.

These devices (TP-LINK) add an upper logic layer that permits them to only communicate between themselves and therefore makes them incompatible with anything else.

It is for this reason that, even if you have an HGU with firmware that supports EasyMesh, they will not work in your home."

Could someone shed some light on this?  I would like to respond on the Movistar forum with something positive.