iOS Sonos app slow

Perhaps try a different 2.4ghz WiFi channel on your router, ensure the channel is fixed and non-overlapping, which means choose either Wifi channel 1, 6 or 11.

Then simply do the following…

1. Set the SonosNet channel in “Settings/System/Network” of the Sonos App so that it is at least 5 channels away from your chosen router 2.4ghz channel.
2. Remove/reset the WiFi credentials in the Sonos App “SettingsSystem/Network/Wireless Setup”. These are not needed when running the devices on SonosNet. Note you only need do this second step if you do not have a Sonos Move speaker on your network that is using the 2.4ghz WiFi band.

See if those steps help to improve things for you before spending your cash.

Ok - thanks I will try later - when the suns gone !      I know some devices are on 5g band of the smart hub. 

FYI, similar problem with myself on Ipad Air 2, Sonos loads all blank and sort of pulses a few times and then 4-6s seconds later is all present and works ok.

(I have also noticed a similarity with Alexa, pulsing and then finally displaying the Alexa front page)

Severa weeks been experiencing Alexa not responding on my Sonos One and having to disable / enable skill ect in Sonos & Alexa apps.

Time for a disconnect everything and router reset and add it all back in, I’ve the time but household will not thanks me !

ian

Yes the Sonos app now pulses like you say before starting up - it didn’t used to do that -

also, it often seems not to reopen on the room It was left on either.

I should say running running apple iOS12.4.5 (16G161)

Hi Ken,   Thanks for your help.  I have only just changed the settings so a little early to see if it’s worked.  I have changed the 2.4 ghz router to Channel 11 mode 3 (whatever that is) and 5g to 36 and the Sonos I have set to channel 1.   I tried the second part of your advice but when I go to settings/networks it says In Use so perhaps the credentials are already absent on the Sonos.

I will let you know how I get on.  
chris

After deciding I wasn’t just imagining it and my Sonos controller app (on iOS) was actually slower than before and consistently so, I committed to researching it in the time honoured Google way and found this thread.
I concur exactly with Chrislisa’s feedback. In the last few weeks the app has degraded in exactly the same ways described by Chrislisa e.g. slow to resolve Sonos “rooms” on startup including some pulsing when starting app after several hours unused, slow to resolve content currently queued for a room on startup, and tending to find one room in particular first over others even when not the room last used.
All of this is on app startup. Once running it’s performance is acceptable. Or rather, no different to what I was previously used to.
I have noted the potential fix re forcing Sonosnet to use a different channel to Wifi and have implemented as it appeared both were using channel 6. However (admittedly without proof) I am fairly sure both have been on channel 6 since the get-go about 4yrs ago when we installed Sonos.
In my setup, I have a Connect plus a Connect:Amp connected over Ethernet on Cat6 which is throughout the house. The Connect drives a traditional hifi and the Connect:Amp drives a pair of external Cambridge ceiling speakers. Additionally I have a Play:1 and a Play:3 for bedroom/office. Hence no devices show up on my Wifi network. We have a Ubiquiti UniFi AP for wifi access point which provides excellent coverage. Internet comes via fibre. The picture I paint is that my network environment is robust and modern and I am solid on my understanding of how to manage it. The new, slow app experience is not imagined, it’s real.
Interestingly, the Windows PC app version is quick and does not experience any of the iOS app symptoms. My iPhone might be considered “old” (if you accept the current rapid obsolescence model of the IT industry) but is a well looked after iPhone 7 on iOS 13.3.1. I never run more than 1 or 2 apps concurrently and religiously swipe away apps after use. Hence it’s battery is in great nick and the phone is fast. I can’t believe it is at fault. However I can believe that new app “functionality” that might only apply to newer models could easily cause technical disturbance on an older model. But one would expect that to be handled through diligent backwards compatibility programming. Or should one …?
 

I can’t understand this. I’ve got three iOS devices, all three are equally as ‘snappy’ as they’ve always been. The only thing that could potentially cause this, in my logic process, is that there’s something slowing the communication between the controller on your iPhone, and the speaker where the commands are being issued to. Which makes me think of two potentials, either some sort of wifi interference, or perhaps a duplicate IP address with the speakers the app is trying to connect to. There’s just not enough gOing on in the app itself to slow down, it’s basically a presentation layer for the real software running on your speakers. 

Beyond reading the FAQ I linked, I’d also recommend a refresh of your network, by unplugging all your Sonos devices from power, then rebooting your router. Once the router has come up, plug back in your Sonos devices. This might help, it certainly can’t hurt. 

But, if neither solutions presented help, I would recommend that you submit a system diagnostic within 10 minutes of experiencing this issue, and contact Sonos Support to discuss it.

I usually suggest the phone folks, they have more tools available, and are available Monday through Friday during business hours. Twitter support folks are available 24/7.

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

Apols for delay getting back to this topic. Life …

I played the game and reset all my network even though it’s configured to allocate IP addresses by DHCP and there are no MAC address reservations nor any uniquely configured host files on any device. I even went as far as changing the subnet on my router just for the hell of it. So definitely no IP conflicts. Sonosnet is on channel 11 whereas my wifi is channel 6 (HT20).

No perceivable difference to iOS app performance but maybe I’m being picky. Maybe it’s startup is acceptable and to be fair it doesn’t really kill me, but it is definitely not as quick as it used to be and I guess that’s the challenge. If you set a standard people notice any slip on that.
Anyway, I timed app startup today several times and it’s around 7-9 secs to the point where all 4 rooms and their content/queue’s resolved. This is not too bad and probably today is a good day. Anecdotally I believe I’ve seen it several seconds slower than this previously. Be interested in what others think about this. But so long as it doesn’t completely fail I guess I’ll just accept it for what it is.

Like Bruce I don’t have any issues with the performance of device discovery on any of my iOS or PC devices. An SSDP scan takes 3 seconds, per the UPnP spec. After that the extra lookups to build the topology and gather the music service credentials should take two more seconds, max. This should be independent of device performance, as the device is barely doing anything.

If you are having slow startup then it must be network problems, and following the usual diagnostic steps, concluding with submitting the diag code to Support is the way forward.