Not connecting to wifi

[Solarukt]

I am going nuts. I've had the echo for a few months now and with no problems. Now, I can't connect to wifi for shit. I've reset it, I've reset my router, uninstalled app, reinstalled app, smart switch off on phone, but every time I go to connect to the "Amazon XX" network, it'll say "connected" on my phone and then it'll say "Internet may not be available" and I go back to the app and it's still on the "Manually connect to echo" page. My wifi is working, I just had comcast install a new modem today, which I thought may be the issue, but nothing. I had a rep from amazon try to help me, and still nothing.

What is going on? I'm ready to take a hammer to this thing.

[jwlv]

It's your smartphone. Turn off the feature that automatically switches to cellular data when WiFi isn't available.

You might also want to read the first message in the Tech Support forum here:
http://www.echotalk.org/index.php/topic,2270.0.html
It's appropriately titled, *** READ THIS IF YOU HAVE TROUBLE SETTING UP YOUR ECHO TO WIFI.