I’m also seeing this, and I have the impression that it happens more often since I upgraded to iOS 12 (on an iPad Air first generation).
Hello @Weirdomusic,
We have moved your report as to better assist you directly here. Can you please provide an overview of your setup using this thread as a guide?
Please be sure to let me know your Core’s manufacturer/model and the manufacturer/model of your Router, any switches, range extenders, ect.
Are you by any chance using a VPN anywhere in your setup here? Is Roon on the list of allowed applications for your firewall? Please let me know when possible.
Thanks,
Noris