How to set up Tenda Nova mesh for wired backhaul - MW5, MW6, etc.

[mivi]

Thanks Sean, I agree that's probably the best workaround in my case.

Just out of curiosity (because it aligns with the suggestions at the start of this whole thread) I also tried the following:
ISP router -> MW 12 WAN Port (Primary node)
ISP router -> Wall socket -> MW 12 LAN Port (Secondary node #1)  Uses wired backhaul
MW 12 LAN Port (Primary node)  -> Qnap QSW-2104-2T -> Wall socket -> MW 12 LAN Port (Secondary node #2)  Does not use wired backhaul

Either way it's not a viable solution for my case, since I would need (to keep) a third MW12. Maybe it helps someone else in debugging