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The original was posted on /r/homeassistant by /u/Pianist_Dense on 2025-04-04 11:30:10+00:00.
So, I was at work when I got a notification from my outdoor sensor saying it had detected movement. This was unusual because the sensor is mainly there to measure temperature (it’s a multi-sensor) and is stationed on the roof of our shed. I checked HomeKit, but it just said the sensor was “not reachable.” I figured the battery had died, and the motion detection was its last goodbye.
Then I noticed that HomeKit showed 11 switches as turned on in the top bar. Since my wife and I weren’t home, I thought, “Why not turn them off while I’m here?”
(I still don’t know why I imported all the switches into HomeKit.) Big mistake. Suddenly, all devices were shown as “not reachable.”
I tried opening Home Assistant and resetting the bridge, which obviously didn’t work. I was confused for a while.
Then it hit me: My router is on the same energy-monitoring smart plug as my TV and media station (don’t judge me for that).
Moral of the story: Don’t put your router on a smart plug. Or better yet: Don’t aimlessly turn off ALL switches at home just for fun!