Difficulty getting Homekit Robin doorbell to talk to Homepod Mini on Orbi LBR20/RBK54 (AP) mesh

Hi folks,

Looking for help since I do like Orbi! But I cannot get 2 or even 1 Homepod to ring when Robin Video Doorbell is rung. Starting to feel like putting 4 x Asus XT8 in a mesh behind a Netgear LAX20 I have (You've guessed it, our house internet is 4G).

I would appreciate your help please.

regrds

Vern