I believe there is still a WiFi issue that started with the introduction of 16.3. I have Skyview 1000T classic, single screen with ADSB and IFD 540. Running Skyview 16.4.0. I see on occasion (1 of 10) flights, after about 30 mins of normal operation, all data over WiFi ceases. No errors, no indications that anything is wrong except the track stops and weather no longer updates. If you have two iPads connected they both experience this. iPad shows it is still connected to Skyview. The only way to get things going again is to go into Skyview setup menu and disable WiFi. Then re enable WiF.
I purchased a new WiFi adapter and last week it happened again. In my opinion, It is most likely a Skyview software problem.