Wife has new iPhone 13 Pro, can’t connect to Core, clicking on Help and putting in IP address of core does not help. No problem with lots of other Roon clients, including my iPhone 12 Pro. Though if I go to Settings from a client (inlcluding from the client on the Core) and click on Find Roon OS it says Searching for Roon OS Core … without ever finding it.
Thanks @Carl. Noted on Roon OS Core, funny that searching for same is an option with Roon Core running on a Mac, but whatever!
The offending iPhone was on the right network and could see the server, but the Roon app network setting apparently didn’t port over with the iPhone upgrade (via backup and restore), and that did the trick!
Having a Roon Core on a Mac doesn’t rule out that there is no Roon OS device also on the network, but I agree it’s a trip hazard users sometimes fall into. The wording has been improved but I still feel more could be done here.