getting error code10:2:12:3:1 Amazon Alexa - Wi-Fi Troubleshooting

Alexa-app-Wi-Fi-troubleshooting

Amazon Alexa is most famous voice enable app that is compatible with all Amazon echo devices and also with some third party devices.
When you will get this error code message(10:2:12:3:1) on Alexa App what will you do? 
Try to follow these steps:
...In the Alexa app, go to the left navigation panel and select Settings.
...Select your Echo device and Update Wi-Fi easily. If you're adding a new device to your account, select Set up a new device then
...On your Amazon Echo device, press & hold the Action button until the light ring changes to orange. 
...Your mobile device will then connect to your Amaozn Echo device. A list of available Wi-Fi networks appear in the Alexa app.

Tips: Connect your Echo device through Wi-Fi setting manually.

Select your Wi-Fi network and enter the password. If you don't see your Wi-Fi/network, scroll down and 
select Add a Network or Rescan.

error 7 is mostly associated with WiFi issues however error indicate registration and setup errors , Alexa device very sensitive to wireless network so unstable witless network always gives problem . one user recently asked about error 7:3:0:0:1 however as i said earlier for complete information about errors and solution visit the link provided above

Puneet Thanks for your suggestions. Information is helpful for all new users of echo.