You may encounter an issue where Alexa is unresponsive or fails to execute commands properly. Your Echo device may also lose connection to other paired devices or your Wi-Fi network. If you experience such issues, you can reset your Alexa and Echo to their original factory settings in the hope that this will fix the problem.
Amazon Alexa: How to Reset Your Echo Show
Before considering a factory reset, try a reboot. This can restore functionality without erasing your settings. To reboot an Echo device, unplug the power cord, wait a few minutes, and then plug it back in. Your Echo should power on and be active within a few minutes.
If that doesn’t work and you need to reset Alexa, it will reset your settings to factory defaults and you’ll need to go through the initial setup process (registration, reconnecting to Wi-Fi, etc.). The reset process may vary depending on your Echo model.
The reset steps are the same for iOS and Android. Android is illustrated below.