I picked up some very cheap Linksys VELOP WHWO1 mesh routers that I would like to use as simple ethernet access points for areas in my house where I can't run cables to clients that have no wireless option.
My current home network uses the TP-Link Deco Mesh 6E routers on factory stock images.
I've tried to follow the tutorials using relayed but always end up with a different subnet for my ethernet ports on the receiving VELOP which means that my end client couldn't communicate with the servers on my Deco network.
Is there a way I can simply extend my current Deco subnet across all devices with the 'master' Deco router handling DHCP and reservations for everything?
As mentioned, it's possible via relayd - but relayd is not all that reliable, WDS/ 4addr would be a more robust option. But WDS/ 4addr is not supported by the OEM firmware of your Deco Mesh 6E.
I went back and redid the relayd tutorial and got it to work this time, I must have mucked it up on my first try. Got a healthy 450mbps across the connection which is more than fine for my needs.