I recently upgraded my home WiFi to Verizon 5G Home Gateway (Router).  I have several other systems in the house that will ONLY function on a 2.4GHz system, so I'm trying to connect the same Deco M5 system I had on the old router to the new router, but can only get the Main Deco M5 puck (hardwired via ethernet cable to the Router/Gateway) to torn GREEN and connect to a new 2.4 Network.  The other two (satellite / WiFi) pucks will NOT connect to the Main Puck.  What am I doing wrong?