Lost surround and sub ( after update ?)

Its a chart showing signal strength between your speakers. (Example below).

To get this you should:

1. Obtain your ARC IP address from your Sonos App (About My System).
2. Open a web browser and type http://XXX.XXX.XXX.XXX:1400/support/review (where XXX = your ARC IP address)
3. When the menu appears on the web page, select Network Matrix. 

June 2nd 14.8

added Sonos Voice as a possible fix

🔌 Power cycle

(No issue on system yet due to previous power cycle and surround removals)

System before adding surrounds;

1210588760

System after adding surrounds;

1506749761

🔌 Power cycle

True play Tuning

✅TV audio ok

❌ Switch to AppleTV, watch Disney+ Obi and surrounds popping distorted or quiet static (Obi says >B< Dolby Digital on TV and Dolby 5.1 on Sonos App)

✅ Turn surrounds on and off temporarily fixes issue

Positive takeaway; I found a new surround sound test scene; Obi Wan S01E03 3:00, lots of special sounds going around & around the room

Mod edit: Spam filter mistook diagnostic numbers as telephone numbers. Post restored.

June 2nd 14.8

added Sonos Voice as a possible fix

**Power cycle**

(No issue on system yet due to previous power cycle and surround removals)

System before adding surrounds;

(1210588760)

System after adding surrounds;

(1506749761)

**Power cycle**

True play Tuning

☑ TV audio ok

✗ Switch to AppleTV, watch Disney+ Obi and surrounds popping distorted or quiet static (Obi says >B< Dolby Digital on TV and Dolby 5.1 on Sonos App)

☑ Turn surrounds on and off temporarily fixes issue

Positive takeaway; I found a new surround sound test scene; Obi Wan S01E03 3:00, lots of special sounds going around & around the room

Did the sonos assistant and a full reset, worked fine for a while.

But 5 minutes ago it was back. Diagnostics sent to Sonos so lets see…

Sorry to hear that. I am so confused why this so random.

How long was it between the reset and the issue @Laurens2207 ?

Can you try making sure HDR is off and see if that helps? 

Not sure why I’m getting posts moderator blocked? Been trying to send a big breakdown of an update with causes/solutions but it’s not letting me. 
TLDR: Sonos Voice issue didn’t fix things, power cycled several times at every stage, diagnostics sent. Still an #ExpensivePaperweight, currently trying Floris’ Sony ‘auto2’ and ‘Dolby digital’ workaround as a low quality sound fix.

If enabling sonos assistant didn’t help you, try to enable google assistant instead and see how it goes. I’m with google since yesterday and I still can’t replicate the issue no matter what I do.

Installed the Sonos assistant yesterday at 5pm and power cycled everything including tv - no dropouts when I went to bed at 1:30. To be fair, I couldn’t be a couch potato all night, so I did step away a few times, but when it’s dropped out before and things “sometimes” come back on later, it’s usually not right (echo, one surround or sub missing, etc.). Things were just working right still when I shut it off last night.

I was switching channels and apps quite a bit with different audio formats, but not switching inputs. Only thing connected to tv via eArc is the Arc. Only installed the assistant on the Arc, not the Ones.

My wifi satellite is still off, ATV 4k is not connected at all. Just using Roku TV apps and tried Amazon music for the first time.

Came home for lunch today, still working for the hour I was there. Came home tonite, still working so far.

I did mention before that over Memorial Day weekend everything worked from Fri - Sun, then had a dropout on Mon. Had not installed assistant at that point.

Just saying that continued proper function for awhile (as others have mentioned) does not always equate to success, so I’m still holding my breathe on this.

But I’ll keep an eye on it and if it goes south with assistant send report and let them know. Not sure they care anymore...

@W Lehmberg tv apps only is certainly the most stable environment for this issue, but the real test is AppleTV or external inputs with format changes. I setup Sonos Voice today and the issue returned immediately testing Tv, Tv Amazon prime/trailer, TV Netflix/trailer, AppleTV YouTube, ATV Netflix/trailer, ATV Prime/TRailer, ATV Disney. The cocktail to force the issue.