9.0 Version App Keeps Freezing

I'd been experiencing this issue for a few weeks, so thought I'd post what's seemingly solved it for me...
After upgrading the Android app to version 9.0 / 9.1, it would constantly lock up / freeze, as has been described by many on this thread. I'd either have to forcibly close the app or restart the phone, but upon restarting the app, I'd be faced with the same issue. It was virtually unusable. It's worth noting that the Windows app had no issues throughout.

I started off trying to solve the issue by first shortening the name of the shared Windows folder on my network where my collection of FLAC files live. The share is housed on a Seagate 2TB Backup Plus drive, connected via USB 3.0 to my router (a workaround, until I get around to buying a new NAS).
This was then added as the music library location in the SONOS app, but the issue still persisted.

Next, within my router settings (ASUS RT-AC68U running ASUSWRT-Merlin Firmware) I disabled the 'Airtime Fairness' setting as this has seemed to help other ASUS users.
Unfortunately the issue still persisted for me.

What seems to have stabilised it, is outlined by 'Airgetlam' in the thread above...
I assigned my two Play 1 speakers reserved IP addresses, from my router interface and then powered off both the router and the two speakers.
Once everything was powered back on, the two speakers has been assigned their IPs and I can report that the SONOS app has been working normally for around 4/5 days now.

Hopefully this may assist others having the same problem. Cheers.

I run into the same issue on an iPhone X with ios 12. The Sonos app freezes and eventually crashes. This is since the 9.0 update of the app.

I have also been having Sonos freeze problems on my iphone SE. Pretty much every time I start playing files, it freezes up so I can't adjust volume or stop or browse. Often it will crash itself and then I start it and it works again. Discouraging.

I'd recommend removing the sonos app, then rebooting your iPhone. Once it comes back up, go to the app store, and download the app again.

If it continues to crash, the next time it does so, I'd submit a system diagnostic as soon as you get it restarted, and either post the number here, or contact Sonos to discuss it. There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

Having the same issue. The app seems OK on my iPad but constantly freezing on my phone. Makes the app completely unusable. Hopefully a fix will be with us soon.

I'm sure it's not related to network / UP issues as I would expect that to affect all devices running the app, and everything was working fine until the recent updates.

The only other thing that seemed to coincide with the problems was moving to ios 12 - if I recall the issues started around the time I started using the ios12 Dev beta. But that may be coincidence.

Help

pitt, With no information about the problem you are having help is unlikely from forum members and even Sonos staff will be puzzled by what your problem is unless it is obvious (not likely to be) from the diagnostics.

Assigned all my sonos devices reserved IPs as suggested here and life was good until now. Back to the freezing app problem after multiple restarts etc. Just frustrating,

Diagnostics 849269557

Actually worse now as my sonos system is now useless as app keeps freezing after about a minute. Any help would be much appreciated as I am exasperated.