IOS app not doing connecting.

[Wellco]

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Just set up a Snapcast server on a RPI. All seems to be working, at least I can use Spotify on my iPhone and connect to the Snapcast server and play music on the RPI. This is just the start as I want to add various speakers to the system in the next couple of weeks with PI Zeros. So I was looking at the Snapcast app in IOS, but no matter what I can't connect to the server, it always gives an error.

A bit of a newbie question, but would appreciate any help..