I just tested this approach, unfortunately the 2nd Node automatically set to wireless backhaul
I have everything configured as you suggested:
ISP Router -> WAN/LAN of Primary Node
LAN of Primary Node -> LAN of 2nd Node
Internet mode set to Bridge.
And 2nd Node shows „Fair connection quality”.
Any other idea?

I have everything configured as you suggested:
ISP Router -> WAN/LAN of Primary Node
LAN of Primary Node -> LAN of 2nd Node
Internet mode set to Bridge.
And 2nd Node shows „Fair connection quality”.
Any other idea?
