Thanks everyone, I too have had many problems the last month.
My rider just slows and stops, sometimes I can hop off the trainer disconnect and reconnect the power and it starts working again without losing too much time but for a race I am toast.
I use a Saris H3, 1 year old IPAD, and new iphone xs on bike for zwift companion.
I thought maybe it was the blue tooth wireless ear phones but everything worked all year until about a month ago. I plan to not use those and try the old plug in to phone style with cable for music next ride to see if it helps the drop outs.
I have the latest trainer firmware upgraded last week and the latest ZWIFT and companion versions.
I will continue to check this thread, Thanks.