My wife got an iPhone 8 about 2 months ago. After about 3 weeks Sync would cutout and music would play in the speakers and on the 8" screen would have a black box in the middle saying; Sync trying to reconnect to Sara's iPhone. And also the buffering symbol is spinning. This would last anywhere between 5-15 seconds and then she could resume the conversation( usually her boss or student), and might last for 1 minute then start again or last 3 minutes(3 minutes seems to be the longest without the reconnecting popping up). In the meantime while Sync is trying to reconnect, the other person can hear the music playing from the speakers since my wife keeps her phone tn the cup holder. When I'm rarely in her Ex, my iphone 7 works flawlessly as did her iPhone 6S as well as her iPhone 8 for the mentioned 3 weeks. I've done a master reset, repaired Sync and iPhone 8 including erasing both from phone and Sync repaired again. Been running v.3.10 since Sept. and has been seamless. Any suggestions would be very much appreciated, every phone call I get to hear about how many times it reconnected. Happy wife happy life-not so happy when she gets ou tof her Ex.