GT-Ax11000 Mesh system

[parallax1]

Ive got a GTAx11000 connected to 2 RTAX92U and I currently have one of the RTs connected to the other which i use the LAN port. Sometimes the one that is connected to the other reconnects back to the router giving me a drop in speed and extremely high ping. Is there any way to force the RT to connect to the other RT or change the layout/order of the mesh system to make sure it is always like this? ill include a photo of the mesh diagram below. Thanks for the help

 

[parallax1]

Just read something about a Beta, is this do-able on that beta or better yet natively? If theres any other things I should know to get aimesh faster let me know