I had this problem yesterday and this morning. I had to power cycle the Arc to overcome. There was a Sonos update yesterday, not sure if that was related. 1590010709 is my diagnostic number.

Hi @andrew richards, Thanks for reaching out and welcome to the community. thanks for taking the time to send a diagnostic report, Upon checking on it. it shows that the Arc status of the Arc is disabled. You can try to unplug and re-plug it on the Sonos Arc and the TV.

Hi  @Kamenrider, Thanks for reaching out, and thanks for taking the time to send a diagnostic report. Upon checking on it, the diagnostic shows everything is normal in your Sonos Arc. Kindly contact our phone support team for further assistance so we can further check what could be causing the issue. 

Let us know how you get on with the advice above.

We're here to answer any further questions you have.

It’s encouraging to see a response from the staff.  I’ve not had a reoccurrence of the problem and will leave it at that for now especially given your findings. Your support staff can deal with people with more important issues.

Hi @Kamenrider, thanks for the update. I’m hoping it will not cause any other issues in the future.

If you need help with any other information, Please be sure to let us know.

The Sonos Community is always here to help.

I have the same issue. My diagnostic number is 1533580006.

Hi @D Thall, Thanks for reaching out and welcome to the community. Thanks for taking the time to submit a diagnostic report. Upon checking the diagnostic, I saw that the Arc status is disabled. You may check the HDMI Arc or E-ARC cable if it is connected to the correct port. Also, try to unplug and re-plug the HDMI ARC/ E-ARC cable on the Arc and the TV.

Let us know how you get on with the advice above.

We're here to answer any further questions you have.

Hi,  I have the same issue.  A couple of days after installing the arc is cuts out every few seconds.   The hdmi used is the one that came with the unit and my tv has earc (Samsung 90t).  The only way to fix is to pull the unit off the wall and unplug and replug the power.  This can’t be the solution and I need a fix that’s permanent.  After day or so it repeats.

Hi @Ugotsurbed, Thanks for reaching out and welcome to the community. I appreciate you taking the time to do some basic troubleshooting to resolve the issue. I’ll ask you to submit a diagnostic report for us to further investigate what could be causing this issue. You may reply to the thread with the confirmation number to assist you with this issue. 

Let us know how you get on with the advice above.

We're here to answer any further questions you have.

Hi @Ugotsurbed, thanks for the update. I appreciate you taking the time to submit the diagnostic report. Upon checking on the diagnostic report, I saw that the Arc status is on error timeout. you may try to unplug and replug the HDMI Arc cable from both ends and replug it back in, and check if there are any improvements on the sound.

Let us know how you get on with the advice above.

We're here to answer any further questions you have.

As someone who is also experiencing this issue, unplugging the Arc, and plugging back in has been able to fix the issue for a little while (usually about a week).  This cannot be the fix we are expected to continue to utilize for years to come.

I agree, this cannot be the fix.  My cables are buried in a wall.  No way I should pay $800 for something that requires me to unplug and plug back in.   Please provide a software fix.

Hi @Ugotsurbed, thanks for the update, Regarding your concern. I'll ask you to kindly contact our phone support team for further assistance and to investigate on this issue.

They’re open Monday to Friday, from 9 am to 10 pm EST. Our phone support number: 1-800-680-2345

I’m now getting this 2-3 times a week and its becoming annoying.

@Simon B How can I get assistance with this please?

Hi @Kamenrider, thanks for the update, Regarding this issue, after doing and suggesting some troubleshooting steps and the issue still persists, I'll ask you to kindly contact our phone support team for further assistance and for more in-depth troubleshooting steps.

Let us know how you get on with the advice above.

We're here to answer any further questions you have.
 

Same issue, any solutions?

Hi @Evanvar, thanks for reaching out. Regarding the same issue. I’ll ask you to submit a diagnostic report for us to further investigate what could be causing this issue. You may reply to the thread with the confirmation number to assist you with this concern.

Let us know how you get on with the advice above.

We're here to answer any further questions you have.

I’m having the same issue with the arc. Keeps cutting in and out and I have taken the HDMI cable as suggested above. Never had this issue with the old playbar. Hopefully a firmware update will fix this issue. Most frustrating. 

Hi @Ben4550, thanks for reaching out. Thanks for bringing this up and we understand where you're coming from. Regarding your concern about the Sonso Arc, I’ll ask you to submit a diagnostic report for us to further investigate what could be causing this issue. You may reply to the thread with the confirmation number to assist you with this concern.

Let us know how you get on with the advice above.

We're here to answer any further questions you have.

Thanks. Diagnostic report no. 226069333

Hi @Ben4550, thanks for the update. I appreciate you taking the time to submit the diagnostic report, Upon checking on the diagnostics report that you’ve sent, I can only see the Sonos Boost that is online, Kindly unplug for at least a minute, and replug it back in for all other Sonos products that you have so we can check if that will work. 

Let us know how you get on with the advice above.

We're here to answer any further questions you have.

Already done that, no updates yet ……..

Hi @Evanvar, thanks for the update, May I ask for the confirmation number for the Diagnostic report, So I can assist you further on this concern.

Let us know how you get on with the advice above.

We're here to answer any further questions you have.

I’m having this issue too. I pretty much have to power cycle the speaker every time i want to use it with my TV (the sounds works fine when just playing music). Has anyone been able to resolve this issue?

Hi @redel, thanks for reaching out. Thanks for bringing this up and we understand where you're coming from. Regarding this issue. I’ll ask you to submit a diagnostic report for us to investigate further what could be causing this issue. You may reply to the thread with the confirmation number to assist you with this issue.

Let us know how you get on with the advice above.

We're here to answer any further questions you have.