one SL’s in surround set up.. right louder than left?!

Hi @Sunde, thank you for your reply and for submitting the diagnostic. 

Based on the diagnostic, your Arc and Sub are both wired to your router but connected to your WiFi network. It's not utilizing the SonosNetwork. Also, there's interference in your network that may be caused by wireless congestion, and the Arc was detected as a dropped room. This could be the reason why your surround is not working since the Arc is the one sending the signal.

Let me suggest the next troubleshooting steps, to perform a sequential reboot of your network devices, all your Sonos products, and force close mobile controllers to refresh the connection. 

A sequential reboot means that we need to do this in order.
1. Unplug your network devices (modem, router, any wireless access points on the network) from the power and wait for 60 full seconds before you plug it back in.
2. Once the router is back online, unplug all your Sonos devices from the power. Please wait 15 seconds before you plug back them back in.
3. Force close the Sonos app from your iOS or Android device.
4. When the status light on your Sonos speakers are solid white, get back on the Sonos app and check if you're connected.

After performing the steps above, turn on the TV and play from your TV or from another source before running the diagnostic report. Just include the confirmation number in your response so that we can look up the information. Also, we'd appreciate it if you can provide us the make and model of your TV and other devices connected (BlueRay, cable TV, i.e) to your TV and how are they connected. 

If you need help with any other information, feel free to reach out. We'll wait for your reply.

The router is in another room and I am not able to connect anything to it. Yes the Arc and Sub are connected together with wire but not to a router. But I did that with the Playbar as well and that worked perfectly.

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My TV is an LG OLED55B6V currently connected to the ARC through Optics cable. As written earlier I have also tried the HDMI-ARC. No difference other then I have to turn the TV on that source to “activate” the ARC before changing to the source I want to get sound. So I don't like using that anymore since that also takes time and the ARC has a delay for about 2sec before it recognizes sound and turns the sound on. Pretty annoying.

I also use a PS4, N.Switch and Apple TV4K. I almost only use the Apple TV. 

​Hi @Sunde, thank you for your response and for submitting the diagnostic report. Let me check it for you.

Based on the report, there's no signal from your TV to your Sonos Arc. Did you run the diagnostic while playing something on the TV or from other sources? Can you tell me on what network device do your Arc and Sub wired to?

Please run another diagnostic while your LG TV is playing for us to check and let us know the confirmation number.

If you have any questions about this. We and the community are always here to help.

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Again. The ARC and Sub are only wired to each other nothing els. No network device. Everything is run on WiFi. Always have always will. Can not do it any other way. And I did so with the Playbar as well.

I just did a clean surround sound check and the right side is significantly higher!

​Hi @Sunde, thank you for your response and for clarifying that your Sonos system is connected to your WiFi network. I appreciate you for submitting another diagnostic. Upon checking, still no signal from your TV to your Sonos Arc. 

Let me suggest the next troubleshooting steps if this will work for you and to isolate the issue.

1. Unplug the HDMI cable from your Arc and LG TV. 
2. Unplug the power cable from your LG TV, the Arc, and any connected audio source. Wait 30 seconds before you plug them back in.
3. Reconnect only the HDMI cable to your LG TV and the Arc. Inspect the HDMI cable to ensure it’s not bent or kinked and check to see that it’s fully inserted into both devices.
4. Update the LG TV’s software (if available)
5. Adjust the audio format (Dolby Digital 5.1, PCM, Stereo)
6. Check for update in the Sonos app
   • Settings > System > Check for updates
7. Remove and re-add surrounds from the home theater setup.

If you're still experiencing the same issue, I recommend contacting our Sonos Customer Care support to perform in-depth troubleshooting. Our phone support has the tools to check what's going on in your system and to remotely access your device to provide the best option for you.

Please feel free to reach out in the future if you have any other questions. You're always welcome here.

Apols for hijacking the thread a little here when you’re receiving direct support but I have a question. You mentioned that your router is in another room but you also mention that only the arc and sub are wired to each other. In what way are they ‘wired together’? In a normal scenario, they wouldn’t be wired together at all. One device would connect to the router, either hard wired with Ethernet or over WiFi then the others would connect to that device wirelessly using their own Sonos network. 
 

I have 3 setups with sub and surrounds and whilst one (the Arc) is hard wired to the router the other two Beams aren’t and in no scenario is the sound bar wired to the sub. 
 

apols if I’ve misunderstood. 

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I have now done every step you told me. The ARC is also no longer connected to the Sub and everything is now on WiFi except the optic-cable between the ARC and the TV. I disconnected the back speakers and did a new TruePlay. The right back speaker is stil significantly higher then the left.

I will call support on Monday.

Hi @Sunde, thank you for your response and for providing the diagnostic report. Let me help you out with this.

The diagnostic is blank. No content information about your Sonos system. 

We really appreciate the time and effort you've spent doing all the troubleshooting steps, and it would be best for you to continue working with us over the phone to expedite the process. 

If you have any questions, please feel free to reach out. We and the community are always here to help.