The three nodes are Starlink. No other make of mesh nodes on my network. I have two ethernet dongles (Starlink, of course). I had tried to make an improvement by connecting the main router via Cat6 cable to a switch. Then fed a CAT 8 cable to node#1 from the switc.h. Chaos ensued… I removed the cable connection from the switch to node#1 and rebooted the system. Everything settled down! I will post a photo but basically it is a wireless setup apart from the connections from the switch.. To get through the thick wall, I placed one node about 15 feet away from the main router, and a second node directly on the other side of the thick concrete black wall in close proximity to the first. Seemed to do the trick for that problem, but third node is further away from the main router , maybe thirty feet, and has a lower transmission rate.