Arc Ultra Surrounds/Sub Disconnect Almost Daily

I wonder if you have the Sonos system linked to a Google Home account? That was the cause of the same problem for me. Google Home was messing things up. Just unlink your Sonos account if you have linked it. 

As soon as you assume that the issue must be [ … ] or cannot be [ … ] you are likely to be blindsided.

For many years I have reserved IP addresses. At one point I rearranged my network slightly and updated reservations. Sometime later I started having intermittent issues with a very old NAS drive. Due to its age, I was not shocked, but the issues were not exactly what I expected from a failing drive. They seemed more like address conflicts, but … I’m too smart for that … right? Finally, I swallowed my pride and checked addresses … darn! ,,, . I had forgotten about a palm sized, seldom used device hidden in a cabinet that now duplicated the NAS address.

I ended up getting another AiMesh node and setting it up right next to the Arc Ultra, which allowed me to wire the Arc Ultra via ethernet. Doing that seems to have resolved the problem.

I may try switching back to Wi-fi after the latest firmware to see if that resolves it, but that would just be for curiosity’s sake.

​@shutter41 This is a known problem and I have been working with Asus directly for a number of months on this. The culprit to this is the Guest Network Pro feature, it changes the way in which DHCP leases are issued by the router. 

Asus sent me a beta firmware to test yesterday which seems to have fixed the issue for me. They are looking to get as much feedback as possible, if you would like to test it, please let me know. 

Here is the ongoing thread about it

I am also having the same problem. I have sonus arc, 2 era 100s and sub mini. It works for a couple of days then the eras and sub just seem to drop off. I have to reset my whole system and set it up again to get it to work. With the amount of money spent on something thats meant to “just work” its a lot of hassle. Its really put me off sonus. The system is great when it works.

Seems like some sort of network issue, but it isn’t possible to tell if it’s coming from inside your network, inside your home, or even external to your home. Have you submitted a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it? Don’t post the resulting diagnostic number here, their lawyers get sensitive about GDPR.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

​@Donstuarty as with my message above, the issue has been solved in the Asus beta firmware and should be released shortly. 

​@Airgetlam As mentioned in my post, the issue has been solved through a new Asus Firmware which should be released shortly. 

Thanks guys. Unfortunately by the time i even realise they have dropped out a few hours have maybe passed, so its hard to get a diagnostics from it. Hopefully a new update will sort it out because i am fed up restarting and connecting them all again.

I have the same problem with my mini sub and arc ultra. Every day, just the once, it loses connection and has to be rebooted. Looked into this a lot, tried many things, Sonos customer services has had a go, but still it loses connection to the arc ultra even though the white light remains solid. I too am hoping a firmware update will solve the problem but who knows!