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Contributor I
June 5, 2025
Answered

Sonos sub gen 2 not pairing with arc and era300

Hi there

 

Just got 2 ERA 300 to play my surrounds with the Arc

 

But got a problem when trying to sync pair the Sub Gen 2: it seems i can only pair the sub or the era 300 but not both. The sub is detected but when i try to add to either the arc or the room system, it saying added after a waiting time (2 or 3min), it doesnt show connected or paired (not assigned)

Even doing factory reset with Era or Sub, same issue.

People told me it might be the sonos app 2 that having hard time with android phone or it could be something else.

 

Need help

 

Thanks

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MQCDocAnswer
Contributor I
June 5, 2025

Seems sensible. I have no access to an Android device to test either way. But now I’m somewhat curious as to how to figure out which gen Sub I have. To my recollection, there’s a slight difference, but not a significant one, since they both bond to the same ‘parent’ devices. My supposition would be there’s a slight change in electronics, due to older, previously used chips no longer being easily available. But there just isn’t a ton of processing being done there. 

Found the issue

It was the cellphone (s23)

Ive tried on tablet and worked 1st try

 

15 replies

Airgetlam
June 6, 2025

Both my Subs identify as Version 17.0, build 85.0-64200

one is

Hardware version 1.8.2.4-1.0

the other is

Hardware version 1.8.2.5-1.0 (and why does Sonos block me from cut and paste? Is it the fear of GDPR and my IP addresses in there?)

Neither suggest a generation number. 
 

​@MQCDoc i hope you sent in diagnostics and called in, it might be useful for CS to be aware of potential issues with the S23, so that it can be dealt with, although I’m glad another device hooked it up for you. 

Bruce
Stanley_4
Grand Maestro
June 6, 2025

The only place I'm finding the Sub gen is here:

https://www.sonos.com/en-us/myaccount/system/households/devices

Sub (Gen 2)

Sub 4

Airgetlam
June 6, 2025

Thank you, ​@Stanley_4 . Looks like both of mine are, at least according to that data, gen 2 ;)

Bruce
Stanley_4
Grand Maestro
June 6, 2025

That really sounds like information that should not be so deeply buried given the Sub's different generations bonding rules.

Should be on the App System pages.

Could we get that added as a feature request?

Mr. T
June 6, 2025

Both my Subs identify as Version 17.0, build 85.0-64200

one is

Hardware version 1.8.2.4-1.0

the other is

Hardware version 1.8.2.5-1.0 (and why does Sonos block me from cut and paste? Is it the fear of GDPR and my IP addresses in there?)

Neither suggest a generation number. 
 

​​​

I don’t believe there is any way to tell from the app.

Hardware versions of Subs I have are as follows:

Hardware Version: 1.8.2.5-2.1 (this is a white gen 2 Sub)

Hardware Version: 1.8.2.5-2.0

Hardware Version: 1.8.2.4-2.0

Hardware Version: 1.32.1.7-2.2 (This is the gen3)

I know with my oldest Subs there was a change in storage/memory. The oldest (2014) has 64/32 whilst the Sub bought in 2015 has 64/64, but both are listed as gen 2 under my Sonos account online. Sonos treat the gen 1 and gen 2 Sub as the same, but would be nice if they actually listed it correctly under your system.