I recently bought some 2 wemo dimmer switches and 1 regular smart switch. After setting everything up, only 1 of them synced with smartthings. I reset the switches and tried again and now I can’t get smartthings to detect ANY of them. I tried resetting the switches multiple times and tried using my 2g network instead of 5g but nothing has helped so far. The switches work fine through the wemo app.
Well i have a strange thing with Wemo,
i have 2 Dimmer Sw and a wall Plug already setup on the Wemo App.
when i do add something with SmartThing App as soon as it start scanning it just add all 3 devices without asking.
If i delete those 3 devices then next time i add a new Zigbee or Zwave devices they come back.
very weird… I just toss then in a Spare Room when i put unused paired device.
So you may try to get them working on your Wemo APP first then they should all add up.