Matter plugs that reboot mid-commission — LED resets, app starts over — usually indicate power sag, overheating, weak 2.4 GHz, or firmware boot loops.
Diagnose
Try another outlet away from compressors. Watch LED during failed attempt — pattern per manual often means OTA brick loop.
If multiple outlets fail, suspect hardware RMA. If only one room fails, suspect Wi-Fi.
Fixes
2.4 GHz join; pause band steering. Update firmware via vendor app before Matter QR. One controller open. Avoid cheap power strips that cut inrush.
Factory reset after cooldown if LED stuck in fast blink.
Verify
Full commission without LED reset; online after ten-minute soak test.