Using a Booster with an Eero Fiber Mesh Network

We've been using a 4g LTE Booster with our DSL internet for a few years. Last week we were able to update to fiber internet that uses an Eero Mesh System. Long story short, the booster won't work with the Eero network. It does still work on TMobile Home Internet, not perfectly but it does work. How the heck does the booster connect on a mesh system? Do I need to upgrade?