I currently have an Archer AX50 AX3000 running in router mode with AT&T Arriss BGW210-700 fed into its WAN. I'm about to have my third floor finished and would like to extend coverage so the same Archer WiFi AND hardwired network are common throughout the home. What would be the best method to do this and still allow for the parental controls? Additional AX3000 for the third floor? Would this work and what would the set up be? Thanks!