Radiant Smart Switch

DSB2015 Posted Sunday, October 12, 2025

Major issue with Legrand radiant Smart Switches, Matter-enabled, model WWMRL10WH. I’ve been running into a major issue with my Legrand radiant switches. It started on September 13th, 2025 when I installed five switches to control my outdoor lights. Everything was perfect. I connected all the switches to my SmartThings Hub and programmed the lights to turn on and off based on the sunrise and sunset. Fast-forward 28 days later, and my switches start to act erratically by turning on and off at random intervals during the night when they’re on, typically between as short as 5 minutes, to as long as 27 minutes. These periods of turning on and off are not logged via the SmartThings app. The front indicator light shines and blinks green as if it had been reset and is saying “I’m ready to connect to a Matter Hub!”, but the switches are already connected to my hub. This type of “I’ve been reset” thing occurs even when the light switch is off. I’ve had to keep my outdoor lights turned off in order to avoid looking like an erratic neighbor who’s in distress and looking for help, but it is driving me insane that the switches are not working as intended. Could someone please assist me with this issue? I’ve tried looking into Legrand’s own website for a solution or a similar Q&A, but I can’t find anything. I’m searching for a solution before I ask Bees Lighting for an RMA on all five of my switches.