I am brand new to Zwift and I am looking forward to training With this software.
Connected using Garmin Speed/Candence sensor, it all looks good, but my avatar stops about every 300 meters. How come? I guess it is a connection thing between my sensor and Ant+ dongle?
It’s probably ANT+ signal interference or an old battery. Get that dongle as close as possible to your sensors (ideally about 1 foot or 1/3 meter), perhaps with a USB extension cable.