This problem applies to every TP-link product I have. Because of poor internet connectivity I have gone to Starlink. They all recognize Starlink Wi-Fi (6) but when it comes to pairing the "correct" password isn't recognized. Every other smart product I have doesn't have this problem. I notice that in all the other forums,  TP-link is blaming the Starlink router. I think not. In not sure if it's hardware or Firmware but TP-link needs to own up and sort it.