@yukoncornelius the TP switch isn't made to be a 4 way. you have to give power to the TP switch so you'd have to tap the white wire in the diagram and then you only have 3 terminals for the 4 wires...

@toddg you need to connect both travelers to the HS210 switch make your 4 way switches operational.

@Mike1960 that's correct!

when wiring a 4 way light, you have to use two 3-way switches (HS-210 kit) and one 4-way switch. the 4-way switch solely has 2 traveler wires coming into it and 2 travelers going out of it. i...

update. i replaced both of the 3-way switches with TP smart switches and left the 4-way "dumb" switch in the circuit. This set up is working perfectly for me.

i have installed 1/2 of a 3 way kit into a 4-way light. the switch does work correctly via the paddles or the app. however, the app doesn't know if the light is on or off. the app always inidcates...