Roon ARC often shuts down

Roon Software Discussion
1

Roon ARC has worked flawlessly since its inception, but for several weeks now, it has been closing every time I use it.

On my iPhone 17 Pro Max (iOS 26.2), I launch the app; it opens and starts playing music. But the app closes after about 10 seconds.

I delete the app and reinstall it. Everything works fine. But the next time I want to use it, it closes again after 10 seconds. And it’s always like that.

What can I do? In Roon, I get a message saying that everything is configured correctly for Roon ARC.

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I too am having problems with ARC shutting down on 17. Think it may have something to do with overheating as 17 power configuration has changed from previous models. Also, there’s a known issue between iPhone 17 and AK HC4:
Main Reported Issue: Connection/Power Recognition Problem

  • Multiple users report that the iPhone 17 (running iOS 26 or later) often fails to recognize the HC4 or refuses to supply power to it.
  • The root cause appears to be a flaw in the HC4’s USB descriptor: it declares bMaxPower = 0 mA (indicating it’s self-powered), but it’s actually bus-powered (draws power from the host).
  • Newer iPhones (starting with the 17 series) strictly follow USB specs and withhold power in this case, leading to no detection or intermittent connection.
  • This works fine on older iPhones (e.g., 15/16 series) and other iOS devices like iPads, as they provide default power regardless.
  • Affected users note it works with previous models but not the 17 Pro.

Astell&Kern is aware and reportedly working on a firmware update to correct the USB descriptor and resolve this.

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… And Roon isn’t doing anything to fix the problem? Despite the exorbitant subscription fees.

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It’s an Astell and Kern issue and they’re apparently working on a fix for the HC4 and they say the HC5 they’re now shipping passed all the tests

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Roon arc always shuts down. It’s very very boring.

7

I have no issues with Roon Arc for a long time now, and that’s on an old Galaxy S10+

8

Same. Has worked very well for close to a year. I do download a lot and I find the combo of that and decent connectivity works well.

just hope they can make offline mode work flawlessly at some point. Seems like an easy thing to do….

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The problem occures only with iPhone 17. See above.

I’m very angry. Roon knows the problem and does nothing.

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Sounds more an iPhone 17 issue rather than Roon based on what you’ve written.

I’m an iPhone 16 Pro Max user and no issues (except after the last update, but reinstalling Arc fixed that)

12

Your initial report is similar to what I experienced on my iPhone 16 Pro Max after the last update.

I deleted the app. Rebooted my phone. Installed the app and the issue was resolved.

Not saying this will fix the issue for you, but worth trying the steps I took.

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Hi @Didier_Duvanel,

This thread indicates you require assistance from Roon technical support.

To equip the Roon Technical Support team to assist you directly, please follow this link to provide the details of your case to Technical Support: Technical Support Request

Respond to the prompts there to ensure that you’ve performed basic troubleshooting and to ensure Technical Support has the full details necessary to expedite Technical Support’s investigation into the case.

Your responses will create a ticket on Roon’s support tracking system and auto-generate a Community thread in the appropriate section.

Because this Community thread will be in a public forum, please do not include any personal information, such as your email address, postal address or telephone number in your submission.

Thank you.

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Oh sorry. I received a response here and thought it was good, but indeed false.

I did as You explained and Roon arc works fine now. Since 6 monthes I have erased the app and reinstalled. Always same problem. But now as You told I have erased and RESTART the phone and reinstalled the app. AND IT WORKS.

THANK YOU VERY VERY MUCH.

3 Likes
15

Awesome. Glad it works again.

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Yes, reinstalling ARC is simple and easy and can be done frequently especially if you’ve only downloaded a few albums for offline listening.

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