@fried56 I solved. It required diconnecting all the wires on all the switches and then locating the hot line from the electircal panel. It seems the electircian was color blind and used random colors...

@Carl Thak Carl, Video does not apply. I was quoted 400. 150 service call, 110 for 15 labor, and 120 for the permit. Estimated date for service July 16, 2025.

Help deciphering existing wiring for 3 way switch Trying to install Tapo S515 The existing wiring does not match the diagrams from TP-Link at all. No support from TP-Link to be found. I am not going...