ammamoore

It was the time for new year and I bought new Echo dot for my girlfriend. 
Everything was good for 1 month but when she got new job and she moved to CA and tried to connect echo dot again with Wi-Fi.
She got the error message 12:2:15:10:1.
I search on google then I found this web page related to echo erros. If anybody familiar with this error then please give suggestion.
I also tried contacting Amazon Echo helpline and they ask us to restart router, echo device 
Even they ask us connect echo device with guest WiFi account but seems to work.

ammamoore

Amazon Alexa is easy to set up with any Amazon Echo or third party device. First of all, Our OS should be compatible with Alexa. 
Alexa compatibility with OS detail
...Fire OS 3.0 or higher
...Android 4.4 or higher
...iOS 8.0 or higher

If you device is able to use Alexa then next step is to plug-in your echo device and connect to power swtich. 
Remember don't forget to on Wi-Fi network of your smart phone.

Required bandwidth of network(Wi-Fi (2.4 GHz / 5 GHz) networks that use the 802.11a / b / g / n)

ammamoore

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.