Use a Bluetooth sniffer app and wifi sniffer. This will tell you all the devices that could possibly interfere with the Zwift setup. Remove or switch off unwanted signals. Try and use ANT+ for turbo unless you're using virtual shifting.
Place ANT+ dongle underneath turbo by using extension lead
Check all firmware is upto date
Place ANT+ dongle underneath turbo by using extension lead
Check all firmware is upto date
