My daughter and I have been having facetime conversations on each of our iPad Air devices with no problems until a couple of weeks ago. Now, every time we connect, hers immediately says "poor connection" and that the video will resume when the connection is better; it never resumes. Audio is good, but no picture on her end (I can see her on my end, she can see herself but not me on hers. We have both updated, restarted, and cleared open apps. Any thoughts?