If you are going to connect the echo dot to Alexa and you are unable to connect this you need to follow these important steps then you can connect this
1. Turn on Echo Dot. Place your Echo Dot in a central location (at least eight inches from any walls and windows). ... 2. Connect Echo Dot to a Wi-Fi network. In the Alexa app, follow the instructions to connect Echo Dot to a Wi-Fi network. ... 3. Talk to Alexa. ... 4. Optional: Connect Echo Dot to an External Speaker.