There is also a some sort of same thread going on @ https://community.tp-link.com/en/home/forum/topic/246920 where I asked the same question on the status of this implementtation.

@Kevin_Z When can we expect an update from the Developers Team? The Backhaul over Ethernet implementation suggestion is already been forwarded to that team since April (7 months ago!) accordingly to...

@Solla-topee I will definitely support the A.P. with Ethernet Backhaul solution!! Running: TP-LINK AX73 with latest firmware V1_210717 2x RE505X(EU) V1 with the latest firmware V1_210511 On the verge...