Contributor I

Answered

sub mini disconnects from beam when tv is turned off

Forum|Forum|10 months ago
November 21, 2025
7 replies
170 views

I have the beam soundbar connected via HDMI (eARC), with a Sub Mini connected wirelessly to the beam. Each time I turn the tv off, the sub disconnects from the Beam. I have to unplug the Beam, then power it back on - the sub reconnects. Any suggestions to keep the Sub Mini connected to the Beam?

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Best answer by Jamie A

Hi @James20, welcome to the Sonos Community!

I’m sorry to hear that you’re having issues with your Sub disconnecting from your Beam.

I wasn’t able to find your support case when I looked, but I did find the diagnostics made from your system. Looking into it, there is a DHCP Proxy Failure message causing the Sub to not receive an IP, meaning your router isn’t giving an IP address to your Sub. I’m not sure why turning your TV off would cause this error to occur, but it explains why rebooting fixes it temporarily and why support mentioned it was related to your internet provider (thought it’s not actually your internet provider, but your router/network).

Can you provide your network details, such as your routers make and model, as well as the makes and models any additional equipment you use, such as extenders? There are steps that certain routers can perform to help resolve this, so if you have one that matches, I can provide those details. Otherwise, wiring your Sonos Beam would prevent this issue from occurring; I’d recommend wiring the Beam directly to your router in this case.

I hope this helps!

Airgetlam

That’s odd. As far as I’m aware, there is no connection between the TV being on and the connection between the Sub mini and the Beam.

When you’re powering down the TV, there isn’t a similar ‘no power’ situation being extended to the Beam, correct? The power should remain ‘on’ to the Beam, so it would maintain the ‘hidden’ 5 GHz connection to the Sub Mini.

Have you called Sonos Support to discuss it?

Bruce

J

James20Author

Contributor I

Thanks for the reply. It is odd. I contacted Sonos and was told it was an issue with the Wi-Fi, but that isn’t the case bc once it pairs, it stays connected until I turn the tv off. Then it loses pairing until I reboot the beam. I’m perplexed.

Stanley_4

Grand Maestro

I'd get it to happen again, submit a diagnostic and call Sonos support, usually the phone folks are more help

J

James20Author

Contributor I

Thanks Stanley_4. Tried that and was told my internet provider is the issue. Absolutely not the case bc it’s working currently after the aforementioned reboot. But as soon as the TV is turned off, I have to do it all over again. I may try using the optical output, but I’d rather not take the TV off the wall to access it - and I don’t think that is the issue.

Stanley_4

Grand Maestro

You are getting very odd responses from calling support, i wish I had better suggestions, hopefully others will

G

Gaham

Headliner I

Thanks Stanley_4. Tried that and was told my internet provider is the issue. Absolutely not the case bc it’s working currently after the aforementioned reboot. But as soon as the TV is turned off, I have to do it all over again. I may try using the optical output, but I’d rather not take the TV off the wall to access it - and I don’t think that is the issue.

I have this problem with an optically connected Beam with ERA 100 Surrounds and a Sub Mini.

There are a few other similar threads so my guess, and it is a guess, is that this needs a Firmware fix for the latest Sound Bars.

Jamie AAnswer

Sonos Staff

Hi @James20, welcome to the Sonos Community!

I’m sorry to hear that you’re having issues with your Sub disconnecting from your Beam.

I wasn’t able to find your support case when I looked, but I did find the diagnostics made from your system. Looking into it, there is a DHCP Proxy Failure message causing the Sub to not receive an IP, meaning your router isn’t giving an IP address to your Sub. I’m not sure why turning your TV off would cause this error to occur, but it explains why rebooting fixes it temporarily and why support mentioned it was related to your internet provider (thought it’s not actually your internet provider, but your router/network).

Can you provide your network details, such as your routers make and model, as well as the makes and models any additional equipment you use, such as extenders? There are steps that certain routers can perform to help resolve this, so if you have one that matches, I can provide those details. Otherwise, wiring your Sonos Beam would prevent this issue from occurring; I’d recommend wiring the Beam directly to your router in this case.

I hope this helps!

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