Headliner II

Answered

Sub gen 3 flashing white light

Forum|Forum|1 year ago
November 6, 2024
12 replies
1054 views

Hi

I have an arc ultra and sub gen 3 setup app and system fully up to date.

Last night I turned my TV off and 5 minutes or so later I noticed a flashing light, it was the sub gen 3 light blinking white, it lasted about 20 seconds, arc ultra was fine.

I checked the Sonos app and my mesh internet Eero app and all was fine nothing seemed to have dropped off from the sonos app or lost connection.

Anyone have any idea what this flashing white light could mean?

I think it means it’s rebooting, but not sure?

Thank you

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Best answer by Corry P

Hi @ledzep1

Thanks for your post!

I am glad to hear this only happened after you stopped watching your content - please let me know if this ever results in a loss of audio from the Sub, as it sounds like it would if it happened during playback.

It does sound like the Sub was performing an OS restart, which is slightly quicker than hard boot from power-off. It is usually seen when a system swaps from being on SonosNet to Station mode, or vice versa, and also when an ethernet cable is attached or disconnected (which is very nearly the same thing).

If you see it happen again, please submit a support diagnostic (after the flashing stops) and let me know here that you have done so, and I’ll take a look for you

I hope this helps.

Hi @blunderdome

Good question - we have not received training/warning that it should be happening. I’ll see what I can find out.

Show previous replies

Corry P

Sonos Staff

Hi @Peter_254 and @ledzep1

Funny, had the exact same experience a few days ago. Turned off my TV and a few minutes later I notice my Sub Gen2 was flashing white, I don't know how long it has been flashing but it was flashing for about 15 seconds after I noticed it.

I have now noticed this same behaviour, and I think the above information is key - a few minutes after audio stops, satellite speakers will go into an energy-saving mode whereby they will move to 2.4GHz until receiving an instruction to move back. I believe this is what is happening as you see the white, flashing light, and as a result, it should not be anything to be concerned about. It does seem to be new behaviour introduced with Arc Ultra, but I don’t know if is intentional and here to stay, or not.

I hope this helps.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

L

ledzep1Author

Headliner II

Hi @Peter_254 and @ledzep1

Funny, had the exact same experience a few days ago. Turned off my TV and a few minutes later I notice my Sub Gen2 was flashing white, I don't know how long it has been flashing but it was flashing for about 15 seconds after I noticed it.

I have now noticed this same behaviour, and I think the above information is key - a few minutes after audio stops, satellite speakers will go into an energy-saving mode whereby they will move to 2.4GHz until receiving an instruction to move back. I believe this is what is happening as you see the white, flashing light, and as a result, it should not be anything to be concerned about. It does seem to be new behaviour introduced with Arc Ultra, but I don’t know if is intentional and here to stay, or not.

I hope this helps.

Thanks for the info, not visited the forums for a while, just noticed another guy with same above and you as well. Can't say I’ve noticed it happen again, thats not to say it hasn't done It though, as I would only notice it in complete darkness and my sub is tucked away out of sight.

Happy Christmas to all.

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