I have verified that when going into Zwift on ATV and not having sound all I need to do is just click the mic button, click it again and sound is back. No need to reset game or ATV.
Thanks for this post Gary, clicking the mic button on the apple remote works a charm.
This is what I’ve been doing, works perfectly
If you are having problems with sound on an IOS phone device:
Make sure your phone is off ‘silent mode’ then your sound for Zwift should return.
This should really be looked at.
Hope this helps.