missing album art on apple music

Hard to tell, without looking at hard data, which we don’t get. In general, the speaker receives the album art from the streamer, and then forwards that information to your controller. My guess is you’ve got some sort of borderline wifi interference going on, just enough to interfere with the sending of the album art, but not quite enough to interfere with the (more important) music. 

I’d suggest two things. No, make that three, since I’ve already linked to that FAQ. Second, if none of those solutions suggested work, would be a simple network refresh. Unplug all your Sonos devices from power, then reboot your router. Wait two minutes, then plug in your Sonos devices. Wait another two minutes, then test. 

But if that doesn’t work, I would recommend that you submit 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.

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.

Thanks, but it is not on wife it is on the cable. Which three things do you recommend? I did reboot router and the amp, it did not help. Well it helped for a second or so, after reboot the art appeared but then it was gone again after couple of songs and again appears randomly and rarely. 

Doesn’t make a difference, really. You can easily drop the word ‘Wifi’, and it is the same thing. Especially if the issue is between your router and the outside world (which includes anything from issues with the router, DNS, and even Apple’s servers, although you don’t have a lot of affect on them).

If you didn’t have the Amp unplugged while you rebooted the router, you won’t have gotten ‘all the things’, just some of them.

And I’d still encourage my third option, Sonos does have access to details that we in the public don’t. 

I did unplug both of my amps for 15 minutes, twice actually, did not help

Great. Did you reboot the router while both Amps were unplugged?

I unplugged the router, then the amps, the all were unplugged at the same time

And also, i do not think it is a router thing because i rewired everything to another router which was not used for a couple of months and it is all the same. Could it be anything with my provider?

Usually not a provider issue unless they are playing dirty tricks like altering their dns servers to generate ad revenue. 

You could try changing from what your ISP suggests/auto-assigns to two or three, not more than 3, of the public DNS servers.

Google 8.8.8.8 or 8.8.4.4

Cloudflare 1.1.1.1

Open DNS / Cisco 208.67.222.222

Quad9  9.9.9.9 

The 1.1.1.1 - 8.8.8.8 - 9.9.9.9 set is easy to remember and gives you three different sources for your system to pick from.

As ​@Stanley_4 suggests, it is possible, but extremely unlikely. What did Sonos Support say, when you called in with your diagnostic? 

I’d suggest talking directly to an agent, not the Chatbot, I’m not sure it would be able to help.

They said to reauthorise apple music. I also noticed that my amp is real hot because we have the summer heat here. Could that be the reason?