@pal4life
I have setup a lot of Alexa devices, and I just referred to the Dot instructions that came in box. It says:
"During setup you will connect Echo Dot to the internet, so you will need your Wi-Fi password."
Then on-screen instructions tell you to connect your mobile device to the Echo's wi-fi at Amazon-1MM showing in your device's wireless signals. This is an open network and NOT requiring a password. Once your phone is connected to this signal, you are directed to return to your Echo setup, connect this Amazon signal to your home wi-fi and put in PASSWORD FOR THE HOME WI-FI (NOT THE PASSWORD FOR THE ECHO which has none.)
If you still need assist refer to Help at top of Amazon's Home page.