What model TV do you have?
Are you using a HDMI 2.1 cable?
Try powering off the Amp and TV for 10 minutes and unplug the Arc from the TV.
Power on both and once the Arc has fully booted, plug the cable back in.
What model TV do you have?
It’s a LG 55UR74006LB.
Are you using a HDMI 2.1 cable?
Yes, I do. Tried other cables as well.
Try powering off the Amp and TV for 10 minutes and unplug the Arc from the TV.
Power on both and once the Arc has fully booted, plug the cable back in.
Already tried that. No dice. And it’s not a Sonos Arc, it’s a Sonos AMP. The (e)ARC in my post refers to (enhanced) Audio Return Channel.
Have you tried these settings on your TV?
Have you tried these settings on your TV?
Yes, tried that. No dice. Even tried another TV (Panasonic). While connected to the Panasonic, the TV setup in the Sonos app ends with “Turn on VieraLink on your TV” - which of course is enabled. So, 4 different HDMI cables (one version 2.1) 2 different TVs, both turned off for several minutes several times (Sonos AMP turned off as well), connected when the Sonos app tells me to do, checked all settings several times, turned ARC on and off, turned eARC on and off, turned CEC (SimpLink, VieraLink) on and off several times. No dice.
HDMI ARC seems to be broken within Sonos somewhere. And it’s awfull as the whole purpose of the Sonos AMP for me is to send TV sound through the whole house - which is impossible at the moment.
Seems unusual. Sonos is merely a client to the CEC system controlled by your TV. It should merely reporting to the computer that it is an Audio sink, and that it can accept x types of input.
Have you checked with the TV manufacturer for updates to their OS, and then rebooted the Sonos and the TV simultaneously?
Seems unusual. Sonos is merely a client to the CEC system controlled by your TV. It should merely reporting to the computer that it is an Audio sink, and that it can accept x types of input.
Have you checked with the TV manufacturer for updates to their OS, and then rebooted the Sonos and the TV simultaneously?
Of course I have checked if there are software updates to the TVs. No updates available. HDMI ARC on the Sonos AMP worked with both TVs before the Sonos update, but not anymore. The TVs are still the same, the Panasonic is so old, it doesn’t get any software updates anymore but it worked with the software version until the Sonos update. Nothing has changed, except for the Sonos update and as explained in the first post, the wifi-router. Since wifi has nothing to do with HDMI and/or ARC, effectively, only the Sonos update happened.
Seems unusual. Sonos is merely a client to the CEC system controlled by your TV. It should merely reporting to the computer that it is an Audio sink, and that it can accept x types of input.
Have you checked with the TV manufacturer for updates to their OS, and then rebooted the Sonos and the TV simultaneously?
Of course I have checked if there are software updates to the TVs. No updates available. HDMI ARC on the Sonos AMP worked with both TVs before the Sonos update, but not anymore. The TVs are still the same, the Panasonic is so old, it doesn’t get any software updates anymore but it worked with the software version until the Sonos update. Nothing has changed, except for the Sonos update and as explained in the first post, the wifi-router. Since wifi has nothing to do with HDMI and/or ARC, effectively, only the Sonos update happened.
Maybe try the LG TV A/V reset - I think with most of their models, it’s a case of pressing the ‘mute’ button three times to bring up the reset option, but YMMV.
Maybe try the LG TV A/V reset - I think with most of their models, it’s a case of pressing the ‘mute’ button three times to bring up the reset option, but YMMV.
Tried that today. Still no dice. The TV setup in the Sonos app ends with “With your TV remote, enable **ARC-Mode** in the **Sound-Settings**.” Guess I have to contact the Sonos support - even though I’m pretty sure they’ll blame LG and Panasonic.
Maybe try the LG TV A/V reset - I think with most of their models, it’s a case of pressing the ‘mute’ button three times to bring up the reset option, but YMMV.
Tried that today. Still no dice. The TV setup in the Sonos app ends with “With your TV remote, enable **ARC-Mode** in the **Sound-Settings**.” Guess I have to contact the Sonos support - even though I’m pretty sure they’ll blame LG and Panasonic.
I note in your earlier post that you mention enhanced(e)ARC. I assume you are aware that the Sonos Amp is ARC only and not enhanced. Presumably you have eARC disabled in the TV sound out settings so that it is using ARC only?
I’d perhaps even power off/on the TV after switching off eARC, to perhaps ensure the TV setting has changed over to HDMI-ARC only.
I’d perhaps even power off/on the TV after switching off eARC, to perhaps ensure the TV setting has changed over to HDMI-ARC only.
Yes, I tried both - eARC on and eARC off. Even got to the point to restart the TV after every change in the settings. It’s so frustrating 
While connected to the Panasonic at least I could tell, that Sonos sees the TV (the app instructs to turn on “VieraLink”, which is the Panasonic name for CEC (and yes, it was enabled). But still. Everything worked fine until the Sonos update 
I’d perhaps even power off/on the TV after switching off eARC, to perhaps ensure the TV setting has changed over to HDMI-ARC only.
Yes, I tried both - eARC on and eARC off. Even got to the point to restart the TV after every change in the settings. It’s so frustrating While connected to the Panasonic at least I could tell, that Sonos sees the TV (the app instructs to turn on “VieraLink”, which is the Panasonic name for CEC (and yes, it was enabled). But still. Everything worked fine until the Sonos update
If not tried already, I would certainly try a different HDMI cable, just in case the cable has ‘coincidentally’ gone bad.
I see aswell that your community profile lists that you have other Sonos products, so if they’re in the same system, then maybe try a factory reset of just the Amp only. Set it up again and see if that might fix it. If no joy after that, go onto give Sonos Support a call. Here’s their link:
https://support.sonos.com/s/contact
