Question for Flux 2 owners

Hi all, I’m a newbie to both the Flux and Zwift.

My question is hopefully pretty straight forward. I’m connecting my the Flux as both a power and speed + cadence sensor to my Fenix 5+. The connection is working fine and I’m seeing the data on my watch however the Ant+ light on my trainer isn’t showing a connection. My question is, should the Ant+ light be illuminated when I connect the trainer to my Fenix?