Roon endpoint on iphone

Heard about this today so forswore the turkey to try it out…connected fine initially but didnt sound all that great with some connections now wont work at all. In Roon preferences the phone sometimes shows up but the enabling process is not successful after running for some time. When enabling process doesnt work iPhone drops off list in Settings . Any ideas?

Roon is on Macmini connected to network, iphone connected via Audioquest Dragonfly to active speaker

I have had lots of similar weird, persistent crashing when exploring the iphone as an endpoint…power cycling helped somewhat.

A post was split to a new topic: iPhone 6s not appearing as an available audio zone