Hi all, Please help

just bought a new TP Link Deco Be65 (triple pack)

everything seems to be working well except my sky q and sky mini box. I read TP link advise to hard wire these but these were working fine with my old ISP mesh (EE/BT whole home) is there anyway I can this working over Wi-Fi, I have tried a number of things

turned off fast roaming in app

turned off beamforming in app

given devices static IP's

tried forcing it to closest node which is main node

tried forcing it to 2.4ghz in app

uldated tp link firmware 

whatever I try the sky boxes go offline all the time, they do seem to reconnect themselves afterwards

so frustrating as this kit is not cheap and I really like it but if I cannot get it to work with sky i will be forced to send it back to shop: