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Enthusiast II
January 1, 2021
Answered

Anyone else experiencing severe APP LAG & slow loading/refresh with S2?

  • January 1, 2021
  • 172 replies
  • 16097 views

Ever since we took the plunge for S2 (including upgrading/purchasing 6 new Sonos unit for S2 compatibility) it’s been a real mess (system stability and WiFi issues)! 

The iOS version of the S2 app is very slow to load, lags almost always, and has a terrible screen refresh rate compared to ANY iOS app we have in the household.   Now 20-40 seconds might not seem like long for an iPhone/Pad app to load/refresh, but if you’re trying to get some quick control over the volume or switching songs this is a STUPID amount of time! 

 

S1 was almost instant across all platforms and apps.  While I realize Apple can take some blame for issues with iOS apps, why is S2 slow on PC and Amazon Fire (Android) devices as well?  

I’m guessing I’m not the only one, but Sonos sure seem slow to address this no matter how many times I’ve reported it to support. 

Anyone else think this degrades the Sonos experience beyond the obvious annoyances (especially compared to the hundred or so other apps we use with NO lagging)? 

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Best answer by Airgetlam

I’ve got no lag, on my 18 speakers and 5 controllers, using S2. Which makes me think there’s a local issue in your system.

I’d suggest three things to you. First, review the wifi interference FAQ. There’s some potential that your system is troubled, perhaps by outside influences. Worth reading through and applying what solutions are presented.

Second, try a network refresh. Unplug all your Sonos devices from power. While they are unplugged, reboot your router. When the router comes back up, go ahead and plug back in your Sonos devices. 

Third, if neither of those work, system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it, or post the diagnostic number here for a Community Moderator to pick up.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the phone folks, there are more options available beyond just the diagnostic analysis.

172 replies

Ken_Griffiths
December 29, 2023

the app sucks!! I have 6 sonos amp and the app cant find them! . I was thinking it was something with my network, so I went to buy a new switch and router but we still have the same issues after installing everything new

it need to be S2 app, because spotify app find everything with not problem .. 

What made you think it was a router, network, or switch issue, when it might simply have been an SSDP device discovery issue involving the mobile controller device? …or did you manage to somehow rule out that possibility before going to the additional expense of new network hardware and what did you do, to rule out it being the controller device?

I’m surprised you only just joined this user-community today, after changing the network hardware too, particularly as it really does sound like you’ve perhaps missed where the real ‘device-discovery’ issues may lie.

Enthusiast I
January 7, 2024

Thanks Bruce for some good potential problem solving approaches.

However, I’ve been there done all of that and more - plus I’m working with top-tier engineers within Sonos.  They have admitted that there is indeed Application lag issues with S2 but not reported directly often so while they are aware it’s tied to the S2 application (all platforms/app versions), there are not enough data points (customer complaints/diagnostics submitted) to allow for a deep dive into what’s causing it.   Some blame may be placed on iOS 14.x.

To be clear I’m not asking about song/music/streaming lags to speakers, I’m asking about using the S2 app on your phones/pads/tablets/PCs.  When people OPEN their Sonos S2 app does it take 10-40 seconds to load/refresh?  Is it laggy when changing sources, volume levels? Do the graphics take time to load after the app has started?  

Again, this ONLY happened once S2 was download and installed on various platforms and Sonos is aware and have determined it’s NOT my system. 

We love our 17+ Sonos whole house audio system, but there are ongoing issues that cause a lot of annoyances and this is just one of them.

 

 

I have experienced the same app loading lag and have had a few SONOS speakers simply disappear from my system. I unplug, reboot every few days which temporarity fixes it. This ALL started when I began using S2. S1 worked flawlessly for years. My feeling is S2 coincided with SONOS dumping the abillity to play Apple Music and the roll out of their own competing streaming music service. It’s like the app is now so larded down that it just takes a while to load and has glitches. 

Airgetlam
January 8, 2024

I have experienced the same app loading lag and have had a few SONOS speakers simply disappear from my system. I unplug, reboot every few days which temporarity fixes it. This ALL started when I began using S2. S1 worked flawlessly for years. My feeling is S2 coincided with SONOS dumping the abillity to play Apple Music and the roll out of their own competing streaming music service. It’s like the app is now so larded down that it just takes a while to load and has glitches. 

This is exactly the situation where setting reserved IP addresses would help. The router keeps losing track of IP addresses. Setting up reserved IPs would help that router from ending up in that state again, and keep that annoying delay/dropping from happening.
 

It would be easier to point the finger at Sonos and their S2 software, and wait for a ‘bug fix’, but it is a local router issue, and not something Sonos can address. 

Bruce
Enthusiast I
January 8, 2024

I have experienced the same app loading lag and have had a few SONOS speakers simply disappear from my system. I unplug, reboot every few days which temporarity fixes it. This ALL started when I began using S2. S1 worked flawlessly for years. My feeling is S2 coincided with SONOS dumping the abillity to play Apple Music and the roll out of their own competing streaming music service. It’s like the app is now so larded down that it just takes a while to load and has glitches. 

This is exactly the situation where setting reserved IP addresses would help. The router keeps losing track of IP addresses. Setting up reserved IPs would help that router from ending up in that state again, and keep that annoying delay/dropping from happening.
 

It would be easier to point the finger at Sonos and their S2 software, and wait for a ‘bug fix’, but it is a local router issue, and not something Sonos can address. 

I use FING to search my local network and I can see each of my SONOS products has their own IP address. I do have 55 IP addresses in my system….perhaps that is too many.

controlav
Lead Maestro
January 8, 2024

I use FING to search my local network and I can see each of my SONOS products has their own IP address. I do have 55 IP addresses in my system….perhaps that is too many.

Depends on your router. I remember having a Frontier router that turned to crap once I had more than 35 or so devices, turned out the NAT table was too small. Its the only time my Sonos system was ever unreliable. Fixed with a router upgrade (newer Frontier router with much larger NAT table).

The easiest way to debug slow app startup is to capture the network traffic, or look at the logs that the PC app generates (less detailed but easier for the non-networking experts). A lot of local calls are made during startup (though all very quick), but if one device is slow it will drag down the entire process. The logs can help in determine the slow device (which when rebooted will fix the issue).

Author of the leading independent Sonos apps for Android, MacOS, iOS, Windows and Xbox.
Ken_Griffiths
January 8, 2024

I have experienced the same app loading lag and have had a few SONOS speakers simply disappear from my system. I unplug, reboot every few days which temporarity fixes it. This ALL started when I began using S2. S1 worked flawlessly for years. My feeling is S2 coincided with SONOS dumping the abillity to play Apple Music and the roll out of their own competing streaming music service. It’s like the app is now so larded down that it just takes a while to load and has glitches. 

This is exactly the situation where setting reserved IP addresses would help. The router keeps losing track of IP addresses. Setting up reserved IPs would help that router from ending up in that state again, and keep that annoying delay/dropping from happening.
 

It would be easier to point the finger at Sonos and their S2 software, and wait for a ‘bug fix’, but it is a local router issue, and not something Sonos can address. 

I use FING to search my local network and I can see each of my SONOS products has their own IP address. I do have 55 IP addresses in my system….perhaps that is too many.

I have three times that amount of devices on my Home network, so it’s not that,  it takes less than 10s to open the Sonos app from a fully closed state and to find 25+ devices here on the wireless LAN (IP addresses are reserved in my case for all my Sonos devices)  - but if you’re having difficulty, then check the devices SNR levels - get them all with a reading of 45dB or higher and ideally where practical, put them on the faster 5Ghz band. Reduce any local WiFi interference too.

It’s also worth just backgrounding the App, when its not in use, rather than fully closing it, as that only takes less time to bring it into focus and have things working (ensure the device is not using things like WiFi calling and don’t have the App set to use mobile data, aswell as WiFi, as those things can give a slight improvement too.

Enthusiast I
January 8, 2024

 

 

Enthusiast I
January 8, 2024

I have experienced the same app loading lag and have had a few SONOS speakers simply disappear from my system. I unplug, reboot every few days which temporarity fixes it. This ALL started when I began using S2. S1 worked flawlessly for years. My feeling is S2 coincided with SONOS dumping the abillity to play Apple Music and the roll out of their own competing streaming music service. It’s like the app is now so larded down that it just takes a while to load and has glitches. 

This is exactly the situation where setting reserved IP addresses would help. The router keeps losing track of IP addresses. Setting up reserved IPs would help that router from ending up in that state again, and keep that annoying delay/dropping from happening.
 

It would be easier to point the finger at Sonos and their S2 software, and wait for a ‘bug fix’, but it is a local router issue, and not something Sonos can address. 

I use FING to search my local network and I can see each of my SONOS products has their own IP address. I do have 55 IP addresses in my system….perhaps that is too many.

I have three times that amount of devices on my Home network, so it’s not that,  it takes less than 10s to open the Sonos app from a fully closed state and to find 25+ devices here on the wireless LAN (IP addresses are reserved in my case for all my Sonos devices)  - but if you’re having difficulty, then check the devices SNR levels - get them all with a reading of 45dB or higher and ideally where practical, put them on the faster 5Ghz band. Reduce any local WiFi interference too.

It’s also worth just backgrounding the App, when its not in use, rather than fully closing it, as that only takes less time to bring it into focus and have things working (ensure the device is not using things like WiFi calling and don’t have the App set to use mobile data, aswell as WiFi, as those things can give a slight improvement too.

Thanks, I’ll see if I can implement these ideas. 

Stanley_4
Grand Maestro
January 8, 2024

I spent many hours on the IP address issue and was never able to pin it down to a Sonos or router problem. Both looked to be doing exactly what was expected.

Still things didn’t work, particularly at updates or power fail/restore times.

Setting the static/reserved IPs solved my issue.

Number of clients supported should be addressed in the router’s forums but unless it is junk it should happily support at least a /24, about 250 devices.

Enthusiast I
January 8, 2024

Anywhere I can get instructions on how to fix or reserve IP’s? I have  one main AT&T router which has fiver optic 250+ speed and then two Ubiquti routers elsewhere in the house. They have different names with all the SONOS speakers and amps using the Ubitqutis.