Roon Arc would not connect unless I ran Roon app on my server (in addition to service)

Roon Server Machine

Apple iMac, late 2015 4ghz intel i7
MacOS 12.7.1
memory 16gb

Networking Gear & Setup Details

ASUS RT-AX86U router
server is connected via Gigabit Ethernet to router and Internet connection is 1Gb fiber up and down.
Not using a VPN
Port is opened and Roon server reports connection is fine.

Connected Audio Devices

iPhone 14Pro (lastest iOS and ARC software)

Number of Tracks in Library

442,847 tracks

Description of Issue

I’m trying to connect with ARC on iphone 14pro while out today and it didn’t work today saying it had ‘poor connection’ at first, which was not true and then just that it couldn’t reach the server, despite everything being fine on the server side.

When I got home, I launched Roon app to verify it saw my connection to ARC as fine and then i quite the app again (service still running of course) I tried again with my phone just on 5G and had same problem.
Then I ran Roon App on my server and while Roon App was running, I tried again on my phone and suddenly I could connect from my phone on Arc.

Then I quit Roon App on my server and tried Roon ARC again from the phone and things were fine.

Are you aware of this issue? Is there a way I can be assured I won’t keep running into this? I’m just in the two week trial period with Roon, and having a stable and functional ARC software is critical to whether I’ll continue with Roon. So, I need to make sure I can have a stable set up.

Let me know, thanks! (so far when things work, it seems really impressive!)

Hi @Damijan ,

Thanks for reaching out!

This almost sounds like RoonServer was closed on the iMac or it went into some sleep mode. Did RoonServer still show as running in the Mac’s Taskbar? If you are able to reproduce the issue, can you note the exact local time + date? We can then enable diagnostics mode once we have this info and check logs for further clues.

Thanks for getting back to me.
Fortunately over these last holiday days, since I posted, I was able to resolve that issue.
I had to reset my Roon ARC app on my iphone and build it’s local database again. After that, it’s been fine… so far. I’ll be sure and pipe up if I have any additional problems. But now, that seems to be sorted and I’m currently trying to figure out how to insure Roon Remote app output doesn’t sputter when I connect 3 or more speakers into a group.
Does app resourse overhead go up substantially when you have multiple speakers in a set, or is it not too much additional overhead?

It can, especially if you are applying different DSP to each endpoint stream.

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