@Cflook00 Hard to be certain from pictures, but I'd start like this: All whites together in one neutral bundle (or two smaller bundles jumpered together). The incoming black - the 14/2 wire with just...

@yvan2021 Sounds like a good plan if you can't get it to work. The wiring is easy - neutral, line in, load, and the HS200 is a simple mechanical relay. Hard to go wrong - if it doesn't work it can...

@yvan2021 Almost certainly a wiring problem. The picture is helpful, but what you really need to do is trace the wires to make sure they're connected to what you expect. Red often indicates a 3-way...

@JasonB190 A more fundamental question is how long they will work? TP Link has been very clear they intend to remove their local API. You could perhaps use them and never update your firmware but...

Sounds like the relay is broken or the load wire is loose as it seems the switch is getting power if it's working/clicking. But if you only had 2 black wires with no white something is non-standard...

@Irispark The usual cause for this is that the white wire is not neutral. If the original switch only had white in and black out, that's certainly the problem. It can also be a loose connection, if...