Hi Benjamin, I’ve had the same issues recently and followed all of the steps outlined in this thread.
I’m in the exact spot: Roon Arc cannot find Roon Core.
Please help
Hey @Robert_Philpott,
Please fill out the needed information on your full system setup highlighted below. I would also triple check you have the correct email address logged in on your mobile device 
Roon Core Machine
Include your operating system and machine info (Model, CPU, RAM)
Networking Gear & Setup Details
Your network gear (model of routers/switches) and if on WiFi/Ethernet
Connected Audio Devices
Specify what devices you’re using and their connection types, like USB/HDMI/Chromecast, etc.)
Number of Tracks in Library
Tell us how large your music library is, eg. “30,000 tracks”
Description of Issue
Tell us about the problem you’re having in as much detail as possible. Screenshots are always appreciated!
A post was merged into an existing topic: Some downloaded tracks in Roon ARC gets corrupted [Ticket In]
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