I learned a trick for extending a network (wired). Plug the Ethernet between two client ports on the routers (leaving the upstream port empty on the second router), and disable DHCP on the second one. This will just put them all on the same subnet. I have an Ethernet cable running across the house like this, giving Wi-Fi at both ends (different names so I can be sure the cameras on that end all connect to the closer one). Everything is on the same subnet (192.168.1.1).
I always get routers that can be reflashed with OpenWRT so I can keep them updated and all using the same version so I don't have to learn multiple routers.
Thank you.
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