@David-TP

@sll55 Yes it should work with both of them connected via Ethernet cables we call this Ethernet back haul you can read more about it here https://community.tp-link.com/en/home/forum/topic/98898

@David-TP

@David-TP

@David-TP

@IanQ With deco routers a higher hardware version = the newest hardware however, the older hardware version would have more firmware updates so they would have more options than the newer hardware...