Ive seen other forums describing the same issue 6 months ago. So i unlinked wemo and tried again.
Belkin Official Support Google Assistant Upgrade Instructions
Wemo won t connect to google home. Google home is merely a vessel for linking to the wemo app not actually setting up the hardware. Set up your google home virtual assistant. I bought a mini plug and went through the whole routine and it didnt show on my google devices. I had a dimmer that was working. In order to establish a network connection look for your wi fi network in the app and simply. This will be grayed out in the wemo app.
Next you will need to set up your google home device and ensure it. Some stated there were server updates going on. Go to your wifi settings on your phone and connect to the wemo devices unique ssid. Reinstalling the wemo app usually fixes this. Now i cant link my dimmer or my plug to google. Dont worry google home will tell you as much the minute you plug it in and turn it on for the first time.
To get started with google home you need to download the google home app ios android to your phone or tablet. If you have multiple homes with wemo devices in them you will only see one set at a time. Once connected go to the wemo app and it should already be working on making the connection and will then bring you to the configuration screen. Connect google home to wi fi. Connect to your google home device directly over wi fi. If you have unplugged a wemo device the wemo app may still have it registered and will look for it.
Before linking to your wemo home wi fi you will need to have at least one wemo device set up and working. Tap settings wi fi.