I updated everything and it did not really improve. Then, I completely removed ARC (and its data) from my phone and reinstalled it. I let it do its syncing thing while still on my local network and now it has been working much more reliably. I hope I am not jinxing it, but that may have really made it usable away from home. I will keep stress testing it (you know, that hard work of listening to music) and I’ll report back if any issues pop up again.
Thanks for getting back to me along the way. Even while things aren’t working as I hope, roon always remains my favorite piece of software.