Problems finding Sonos system when using powerlink adaptor to extend home network

An unhelpful and pedantic response that just muddies the waters.
Pedantry or accuracy? Certain terminology was mis-used.

1) Sonos's software could, and should be, modified to operate over multiple local subnets thus solving this problem overnight.

No, because the vast majority of home users don't run multiple subnets. Or at least not intentionally. And fundamentally rewriting the software to cater for those who have accidentally broken their network in two makes no sense whatsoever.

2) Ethernet over Powerline between the main router and the Sonos device is a great solution for most people who have accidentally introduced multiple subnets.

If it is, it's addressing completely the wrong issue. In fact it could end up compounding the problem rather than solving its root cause. Accidentally bridging two accidentally created subnets would cause even more mayhem.

Yes performance is not always 100% perfect but be practical; good enough is good enough for this use case.

Unless you're party to all the experience Sonos Support have accrued over the last 10+ years you can make this statement only from your anecdotal point of view.

3) If another WiFi device is required for range extension, running it in Layer-2 bridge mode rather than routing mode will help to eliminate multiple subnets.

'Help'? Turn it round: using a router will break a network into several subnets. An access point is an access point. A router is a router. A router in bridge mode functions as an access point. A router not in bridge mode also functions as an access point if DHCP is disabled and it's wired via a LAN port.

Customers should be told this.

Believe me, we tell 'em all the time...

4) It's irrelevant how UPnP is is/not designed to work. It's not appropriate to solely rely on it if you actually care about customer experience.

Of course it's relevant. Are we back to protecting the customer from accidentally creating multiple subnets again? See above.

5) It's extremely arrogant and short sighted to dismiss this issue as not currently affecting "most customers".

Arrogant? Short sighted? Common business sense suggests that in the few instances where customers screw up their network by inadvertently introducing multiple subnets you simply help them un-screw it. You don't contemplate a full-scale re-architecting of the product's local network communications.

Come on children, play nice. I'm sorry I started this thread up again. I didn't mean to start a world war. I posted only because I have this problem myself and was surprised that Sonos had not taken part in this discussion, leaving it to their customers to figure out some way round it. Maybe Sonos support will now be kind enough to chime in and give us a definitive reply on this issue. Over to you Sonos... anyone there?

Sorry, when someone suggests that

Ethernet over Powerline between the main router and the Sonos device is a great solution for most people who have accidentally introduced multiple subnets.

and that Sonos should somehow modify their software to take account of such mess-ups "overnight", it's not a question of playing nice or not. It's necessary to put the counter-argument so that lurkers don't go away with the wrong impression.

As for Sonos, they're not exactly going to offer guidance as to which EoP adapters to purchase. I have, because in the past Devolo have largely behaved themselves. Check that your controller device, when attached to the TP-Link, has an IP which is in the correct range. Try turning the iDevice off and on again, to forcibly flush its ARP cache.

Come on children, play nice. I'm sorry I started this thread up again. I didn't mean to start a world war. I posted only because I have this problem myself and was surprised that Sonos had not taken part in this discussion, leaving it to their customers to figure out some way round it. Maybe Sonos support will now be kind enough to chime in and give us a definitive reply on this issue. Over to you Sonos... anyone there?

Sonos has most certainly taken part in the discussion, maybe not in this thread, but in many like this before. They have stated in no uncertain terms that although some people can make them work, they do not support installs which use powerline type adapters. That is their definitive reply. Given that statement, I don't understand why you now expect them to help you with your install which uses powerline type adapters.

Sonos has most certainly taken part in the discussion, maybe not in this thread, but in many like this before.

Sorry, I have not seen the other threads. When I searched for info on this issue, this is the thread that came up first and that's why I read and replied to it

They have stated in no uncertain terms that although some people can make them work, they do not support installs which use powerline type adapters. That is their definitive reply. Given that statement, I don't understand why you now expect them to help you with your install which uses powerline type adapters.

Again, I have not seen that statement. If that is the case then it should have been printed on the box because potential customers cannot reasonably be expected to to trawl through manufacturer's forums looking for threads about problems they don't even know exist before they buy.

I'm leaving now but would like to thank those who gave helpful replies. However, I have to say that this forum is one of the unfriendliest I've encountered. What could have been a useful experience was spoilt by unnecessary nitpicking. I hope you will in future be able to behave in a more civil manner, unless of course, Sonos do not support civility either.

It may not be on the box, but it is on the official Sonos System Requirements page, right on this website:

https://sonos.custhelp.com/app/answers/detail/a_id/127/kw/ethernet%20over%20power

EOP Adapters

Ethernet over Power devices, also known as HomePlugs or Powerline adaptors, are not supported by Sonos. While they may work for some systems, they tend to cause intermittent problems with Sonos. EoP devices create an added delay between your network and Sonos. If this delay is too great it can cause your music to skip or cut out completely or your players to drop off from the network.

And by the way, that was my first post of any significance in this rebooting of the thread, and I hardly think it was uncivil.

I have to say that this forum is one of the unfriendliest I've encountered.
It has been, and remains, a civil place. We pointed out that yours was not a configuration which Sonos officially support, and offered some suggestions.

By Far the easiest solution is to locate the TP Link wifi extender next to any one of your Sonos (in my case Playbar) and then connect the ethernet port on the extender to the ethernet port on the Sonos (same effect as plugging Sonos directly into the router). Have had no problems with IOS controller since doing this.

I swapped the two PowerLine Adapters and since then it seems to work... The Powerlines i use are TP-PL551

SOLUTION!!!

Just connect the Sonos directly to your Wifi Repeater thru an ethernet cable!
It will work INSTANTLY!

🆒