Hello @Tia33 ,

Welcome to our community.

May I know if your network topology diagram is as follows:

ISP──Ethernet──Starlink Gen 3 ──cable──TL-WPA7517 adapter──powerline──TL-WPA7517 extender)))(((Tapo C530WS

                                                                                   │

                                                                               └───powerline—New TL-WPA7517 extender)))(((Tapo D235

(Note: — stands for wired connection,)))((( stands for wireless connection )

If you remove the second extender, will the whole network stabilize again?

For comparison, please switch the positions of the two extenders. Does the extender at the doorbell location cause network instability? If so, it's likely due to interference from the power lines at that location.