Lights turning on when they shouldn't

I’m using a smart lights routine to set my accent lights in my room to sync with the dimmer switch that controls the main lights. This is the only automation for these lights.

But for some reason the main lights will turn themselves on. I’ve tested stopping the smart lights and they don’t turn on again in a week’s time. Turn on the routine and it starts turning on randomly within a couple days.

Does anyone have any idea why this might be happening when the accents are only one supposed to be controlled by syncing with the dimmer switch. Yet dimmer switch is clearly being controlled

What is smart lights? I want to make sure this is something on the SmartThings platform before proceeding.

Smart lighting perhaps? if so, can you post a screenshot of the rule.

It’s one of the Smart Apps for routines labeled smart lighting.

Do you have the Alexa skill linked to your ST account? If so, make sure Hunches are disabled.

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My first thought but I have my doubts… do you use Alexa? If yes, check in Alexa to see if Hunches is enabled. Hunches may have created a Routine in Alexa to control the lights.

If not using Alexa… start going through History to see if it gives any indication for what initiated the actions to your lights.

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No Alexa. I do have Google Home but it’s has no automation for it.

I have noticed it’s usually in the morning around 6-7ish

When the dimmer switch turns on randomly does the Smart Lighting routine run to sync the accent lights to it?

When the dimmer switch turns on randomly is it using the last level setting or is is being set to a different value?

When you say the Smart Lighting automation is the only one that works with the dimmer switch, is that definitely true? Nothing skulking in the Rules API or Tasker or anything like that?

I believe it’s the last light level so it’s just power on. But sometimes when I had the lights at the lowest (1%) I do see when they automatically turn on it says it was set to 0% first.

I’m pretty positive. I use to make rules and have since deleted them due to my poor understanding of race conditions while writing the rules so I use only the app’s routines now.

Only thing in Tasker is to unlock the door when I scan an nfc tag (everything is on my phone the tag only has it’s ID).

Have you double checked if there are any ghost rules in the AWA?

What is AWA?

https://my.smartthings.com/advanced/rules

Ohh, yeah nothing there.

Brand/model of the dimmer switch?

TP Link Kasa HS220

They are failing left and right at the moment. Just a question of time until your switch will rapidly turn on and off.

Just one of many posts I’ve seen in the last weeks:

https://reddit.com/r/homeautomation/comments/1f0gj3o/tp_link_hs200_circle_and_wifi_lights_blinking/

As someone here suggested: check the history (global and device) in the app.

You should also make sure that your wifi devices have static IPs, not dynamic IPs! Who knows how it reacts when it gets a new IP every day/week.

Any suggestions on another switch, dimmer, motion sensor set of light switches that are affordable?

Affordable? I don’t know…

People seem to be happy with:

(There’s a hint on that website that WiFi isn’t the best option for smart home devices.)

But of course you need a SmartThings hub for anything else than WiFi devices.