I have just purchased a kit of 3 Deco S1900 They are set up as access points, with one being set as the 'main' one but they're all wired back to the main router (possibly via an ethernet switch). They

I have just bought an Archer AX1800; I already had a RE330 which I was using as a simple Access Point connected via ethernet to main router. I've now replaced the router with the Archer AX1800 which I