Deco mesh routers and Starlink

I'm having a heck of a time installing Deco Mesh X20 to my Starlink. I originally had it as follows: I had my Starlink and then I used an Ethernet cord, went into an 8-port switch, and then after the switch I plugged in my Deco. Some people are saying that I should go from my Starlink to my Deco and then Deco to my switch but I have tried it both ways and my Deco just blinks red. Any help would be much appreciated.