FaceTime freezes saying poor connection with my new ipad air, but works perfect with my older ipad2 in same house

On my MBP 2014, when I facetime with my parents, I can see their video for about 1 minute and then it disappears saying poor connection. Audio is great. When I use my iPod from 2009 on the same exact network, I can Facetime with them without any "poor connection".

I use the same connection.

November 1st, 2015

iOS 9.1

FaceTime is not working correctly for me either. My wife calls her sister in New York, or vice versa, and the connection lasts for about 10 seconds. Then the image freezes and displays the message "poor connection". My wife can only hear her sister, but her sister can still hear AND see my wife. We have wifi only iPads, so if my wife tries to FaceTime from her phone on LTE, it works flawlessly.

is this a wifi issue? I hope not. We've never had a problem before, until maybe after updating to iOS 9.

This issue is not limited to iPads. I can chat well through FaceTime on my iPhone 4GS but as soon as I do it from my macbook pro, the image freezes after the first 10 seconds. If it is an image resolution problem, Apple should let FaceTime degrade the image in case of poor connections. ** I doubt this is the real issue...