Wireless Wire Cube Pro with starlink and tp link decos

Hi

i have version 3 starlink
i have 3 tp link decos. One is connected directly to the starlink. one is connected wirelessly to the main deco


the third is connected from the main deco , to poe injector which then leads to the master wireless cube pro. The slave is only about 30 metres away, ant that ahs cat6 run to the poe injector which then connects to the third tplink deco

I cannot get the third tp link deco to work through the wireless cube pro system

can any one see a reason why this should not work

thanks
appreciate your help
Jason

Log into the wireless wire and go to bridge and turn off RTSP. Might be blocking.