Most people use their Echo Dots to control their smart home systems. Compatible with thousands of different brands, including Philips Hue, Sonos and Ecobee, the sky is the limit for everything you can do with your Dot. Most of the handshake between Amazon and the world of smart products is firm and longstanding, but these connections are also subject to errors from time to time. In cases where your Echo DOT not working stops controlling your smart stuff or isn't detecting new gear, here are a few things you can try.