The problem is the signal from your trainer is being blocked. Fortunately the problem can be solved.
The main thing to do first is to go on what I like to call an “interference detox”
Bluetooth, ANT+, WiFi, Microwave ovens, cordless phones and many other devices all use the 2.2GHZ bandwidth by default. They’re all batting to get their signal through and the usual winner is WiFi. It takes a bit of fiddling, but you can remove WiFi from the mix completely by creating a 5GHZ wifi network and connecting to it. This usually wipes out all these problems on its own.
- Download the videos first
- Make absolutely sure no other app is still connected or trying to connect to your trainer. This is on any device in the house
- If your iPad is in a case, take it out. This can block the signal to the antenna
- If you’re streaming to a TV, try riding without it for a ride and see what happens
- If you’re using an iPad, put your iPhone in airplane mode (or vise versa)
FulGaz can suffer from interference a lot more than other apps because of the detail in the ride data. It will be attempting to control the resistance of your trainer every second of every ride as opposed to the start and end of an interval or a less detailed representation of a real road.
That should get everything running really well.