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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2

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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3

Arc App transferred to iPhone 17 Pro Max but not the downloaded albums. Also, there may be some issues with these two models of the new iPhone [not others] as SuperGrok 4.1 beta informs me above

4

Thank you very much for your replies.

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

5

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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