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

[Seán]

It seems like the Qnap is filtering something that the Tenda Nodes use to establish the wired backhaul connection. If possible, I suggest connecting the two such that they are not daisy chained through the Qnap, i.e. only use a single LAN port on the Qnap, like the following if possible:

ISP router -> Wall socket -> MW 12 WAN Port (Primary node)
ISP router -> Wall socket -> MW 12 LAN Port (Secondary node)
ISP router -> Qnap QSW-2104-2T