i have an iPad Air 2, and my friend has my old iPad 4. We have tried connecting via this app and when I am trying to connect, I see "connecting", but I am never able to connect. The same thing happens on my friend's end. She is using a T-Mobile Hot Spot, and I am using WiFi from a cable provider. From what I have read, a Hot Spot will not work because of the 3G/4G speed. Why will this not work when an iPad that has the same speed built into it will work?