iOS setup error: This accessory isn't compatible with your Wi-Fi router

What does this mean?

Getting an This accessory isn't compatible with your Wi-Fi router error means that the iOS device you are using to set up your Wemo is connected to the 5 GHz network (where both bands have different names).

Solution:

Make sure to connect your iOS device to the 2.4 GHz network and set up your Wemo again.

Related Articles:

Setting up a Wemo 3-Way Light Switch using your iOS device
Setting up the Wemo 3-Way Light Switch using your Android device