I recently bought a TACX Neo 2 and I have set this up and everything is working fine. I currently monitor my heart rate with a Garmin Fenix 3HR. For this they also gave me a Garmin USB ANT+ dongle to have it connect through my laptop (Macbook Pro) to the Zwift App. I have not been able to find any suitable instructions on these forums or in general.
Most reference the use of the Broadcast HR function but all of the reply posts I have read say this does not work.
Can someone provide a definitive step-by-step process to connect my Fenix 3HR to Zwift? Or alternatively a link to something?