Roon ARC Consistently Crashes with Eero Pro 7 Setup (ref#H0LLN1)

Support
1

Network Setup

· Do you have a mesh network? (Google Mesh, Eeros, Ubiquiti, etc.)

ARC Status

· ARC is *Ready*

Describe the issue

I honestly have not any any consistent luck w/ARC since it launched several years ago. Two years ago I moved and was "stuck" using a Verizon Fios Gateway w/my Eero Pro 6 in Bridge Mode as had both Fios internet and cable (and they force you to use their gateway/signal splitter). Roon worked great in house but ARC did not despite the "ready" status both in Roon settings and ARC. It would consistently crash shortly after loading or within 30-60 sec...but rarely would actually play for a while...completely unpredictable. I tried Tailscale at least 4 seperate times during this period and it too was spottly and mostly didn't work. So recently, switched to YouTube TV and ditched FIOS cable and the horrible verizon gateway (which btw I tried multiple reservations/port forwards within the gateway to no avail--and the gateway menu was painful)...w/the switch upgrade routers to eero pro 7 and no-longer in bridge mode. So now my set up is dead simple...Fios internet straight into the house w/no verizon gateway or similar device right to my Eero Pro 7 router which is directly connected via ethenet to my SonicTransporter i9 which sits right next to it. 2 other Mesh Eero Pro 7 with ethernet backhaul. Network is very fast w/1gbs down (more like 990 mps) and wifi speeds consistently 500-800 mbs. Thinking now ARC would work GREAT! It doesn't! Says its ready and consistently crashes w/o fail in car or here in office w/in 30 secs or less. Meanwhile I stream Qobuz app flawlessly literally all day long! So please help me fix this once and for all! Some key Eero App settings that may or may not be correct:
1. IPv6: on
2. DNS Servers on all devices (iOS Remotes, Sonictransporter and Eero Router) Google DNS for iPv4 and iPv6.
3. DHCP & NAT: Automatic
4. Reservations and Port Forwarding: Reservation is "set" for my sonictransporter and the ip address in the eero app and roon apps are the same. Port forwarding is set for the same int/ext port 55002 in both Roon app and Eero app. I also set an iPv6 firewall rule for the sonictransporter for the same 55002 port.
5. Local DNS Caching: off
6. UPnP: ON (I have tried it on and off and get same problem, but most places including roon tips seem to say it should be on so I left it on).
7. SQM: off
8. Multilink operation: Off
9. Client Steering: On
10. Encryption: Default
11. Threading: On

Describe your network setup

see above.
ISP: Verizon FIOS 1GB plan
Network Devices: new Eero Pro 7 mesh
Linked: Primary Eero ethenet to roon server/sonictransporter i9; both roon endpoints ethernet to 2 other eero pro 7 in mesh config (both of those endpoints and all roon streaming in house w/o any issues--internet in general at least twice as fast as before by removing the terrible Verizon gateway/taking my eeros out of bridgemode, etc).
OS: Roon server is sonictransporter which is Linux, remotes both iOS--iPhone 14Pro and iPad M4Pro

2

Are you using the Eero Plus subscription services?

3

Hi @Douglasmaurer,

Thank you for your post. Diagnostics indicate that your Roon library contains upwards of 385,000 tracks. If that’s the case, it’s unfortunately highly unlikely that ARC will perform reliably.

The phone OS and cloud services impose limits on data transfer for any one app; with an object count this high, it becomes nearly impossible for ARC to maintain parity with your Roon library on the server due to the volume of associated metadata, images, play history, etc.

We generally guarantee performance in ARC up to about 100,000 tracks. The team has work in the pipeline to rearchitect the initial sync to try to raise that ceiling. We expect this work to release in the near future, but we don’t currently have a timeline.

4

No I am not using the Eero subscription services. Just the functionality that is included for free.

5

Ok I thought that might be the issue as some others on here with large libraries have seemingly had sig ARC instability. I guess my only other “ask” I another “once over” of the settings I provided to make sure I dont have anything set up incorrectly. Any utility in trying Tailscale again or it simply wont matter with a library the size I have? Thanks

Doug

6

Hello @Douglasmaurer

Wanted to follow up on the ARC sync issue with your library. R&D is aware of this and actively working on improvements, we don’t have an exact timeframe yet, but your case has been added to our tracking for it. Please keep an eye on the Roon Software Discussion > Software Release Notes going forward, we’ll note it there once a fix lands.