Alexa not finding smart-home devices: Before connecting any device to Alexa, don’t forget to check the compatibility of that device whether that device supports Amazon Echo or not. The major companies that support the Alexa smart voice technology include Honeywell, Philips Hue, and Ecobee3. Adding a device: To add any new device, you need to click on ‘Smart home’. After this, go to ‘Discover devices’. If the device is not appearing in the list, then nothing to worry, you can check the list of supported devices from the official Amazon support page. If you find a problem in connected the devices that are already connected, then you can follow the steps mentioned here as under: • The problem can be due to network, software or other issues prevalent on the device. To fix the problem, simply restart all the network devices. This will solve your problem.