dkenman

@IndyMike thanks for your help. Yes, you're correct. I have two 2477 Dimmer Switches associated with 'Driveway Lights'. However, when I operate the SECONDARY switch manually/physically 'Driveway Lights' respond as expected, but when I operate the SECONDARY switch via the ISY994i Console, 'Driveway Lights' DO NOT respond, although the switch's LEDs do. Btw, before I installed the two 2477s, the lights were controlled by traditional 3-way switches.

@tazman, Wow! Thank you! I didn't know that. So, even though the secondary switch (2477D) LEDs do respond, the load (Driveway Lights) shouldn't, correct? Please confirm.

Hello @lilyoyo1, I just tried both to no avail : -(. Any other suggestions? thank you!

@paulbates, thank you. I did restore the devices to no avail, and then I later deleted the scene and created a new scene to no avail as well.

Hello! I had to replace my PLM and I believe I followed the PLM replacement instructions correctly. After replacing the PLM, my secondary switch in a 3-way switch configuration for my Driveway Lights no longer works correctly when I command it on or off via the ISY console, however it does work correctly when I manually switch it on or off. When I toggle the secondary switch via the ISY console the indicator lights on the physical switch react correctly, but the Driveway Lights no longer changes state. Both the primary and secondary switches are part of a scene called Driveway Lights and each switch is a controller and a responder. Any ideas what might be wrong? Any info would be greatly appreciated. My config is as follows: ISY uuid:00:21:b9:02:27:64 Firmware. Insteon_UD994_OADR v.5.0.16 ( 2019-10-08-10:00:50 ) UI Insteon_UD994 v.5.0.16 ( 2019-10-08-09:43:00) Product ISY 994i/IR PRO (1110) OpenADR (21010) Z-Wave (21100)

ergodic, Thank you for this post. I'm an embedded realtime software engineer, and I've found ISY programming somewhat confusing and non-intuitive. I'm not sure if I'm not reading the right material or if I'm just a little dense, perhaps a little bit of both. However, state machines are universal, and this really helps.