I got my 3rd node to connect to the 2nd node not sure for how long it will stay like that.
What I could find online was you have to reset the 3rd node and let it connect on its own again.
Why in the world did i buy this AX3000 mesh routers they cant even connect to each other only wants to connect to the main router so thus making it a star connection. I wanted a mesh network so it can extend my signal. Now with this rubbish connection 2 of the nodes now sit with bad signal.