9.0 Version App Keeps Freezing

Have been having hanging/freezing problems repeatedly. Have 3 ZP100s, 2 ZP80s (1 installed and the other in storage), a pair of Play 1s in stereo, 1 Play 3 and 1 Play 5. Run Sonos Net with 2 hardwired bridges. Connect to a 25,000 song FLAC collection on NAS and also to Spotify and Amazon Music via the Sonos app. Have the sonos app downloaded to 2 apple tablets, 5 amazon fires and 3 samsung devices - 1 phone and 2 tablets. My experience after multiple reinstalls of the apps is freezing is almost constant in the samsung tablets but works almost flawlessly in my s7 phone which has far more apps installed than the samsung tablets. The fires are better than the samsung tablets but not as good as the phone which only have the sonos app installed in addition to the standard Fire apps (got the Fire tablets to use exclusively as sonos controllers). The apple tablets freeze less frequently than the fire or samsung tablets. Makes me think the samsung tablets that run android 7 (and the fires I believe run a similar version) is problematic because my phone which runs android 8 works well.

Sonos could you please fix these bugs? As more capability has been built into the app, the buggier it has gotten. As discussed here also even the upgrade process is tedious - lots of failures to update and constant retrials before the updates are completed.

Unfortunately I am having the same freezing issue. Running the app on my iPhone SE and it freezes a LOT. It only started happening lately.

Looked more closely - the app in the android devices doesn't hang/freeze as long as you don't leave it like using any other apps or turning the phone/tablet off or the screen going off to save power. I set all my andoid based tablets to not turn off the screen for 30 minutes and when I use the sonos app I don't use any other app and don't press the power button. Obviously this is wrong and needs to be fixed!

I’ve noticed the same sort of behaviour with my problems. In my case, the apps (both ios and android) lose the ‘state’ of the zone and playback mode from time to time and it’s always after the device has come out of sleep mode. It mostly manifests itself in the controller changing the room that it thinks is playing although a few times I’ve seen the ios app look like it has restarted itself. I suspect the problems I have are related to the problems you are getting.

Hopefully they will sort this problem out soon because I’m having to use my CR200 controller most of the time as that’s the only reliable controller I have since they scrapped the CR100.

Today's 9.1 update seems to have fixed the freezing problems.

The new update temporarily fixed my problem...but on the second day it reverted to the same situation. This is similar to what happened when I reset all of the zones; it worked fine for a few hours but then the following day it was doing the same thing. So...still not fixed.

Yes it was indeed a temporary fix. My system is back to the same freezing problems! The only thing I did in between was update the software on my PC and index a few more songs in my library. Extremely frustrating.

If resetting units is a temp fix, and it reappears in a day or so, I suspect IP address conflicts caused by a router that has lost its allocation table info due to a reboot or power outage. The reason a reboot of the Sonos device will "fix" this is a Sonos reboot causes it to get a new IP. What happens later is another device's IP lease is up and it request a new one from the still wonky router, and the cycle starts all over again. Because a Sonos update causes all devices to reboot, it sometimes seems that the update caused the problem, not the wonky router.

To cure this, you need a full network refresh. Do the following:

Reboot/power cycle your devices in the following order:

Modem
Router
Switches or hubs
Wired Sonos units
Wireless Sonos units
Computers/printers
Wireless devices - phones/tablets etc.

Allow each device to come back up before proceeding to the next. Note that you can permanently prevent duplicate IP addresses by assigning an IP to each device's MAC address in the router setup. See your router manual for details.

No joy with rebooting the network. Any shift out of the app makes it freeze. Works great as long as I keep the app on and the screen on with it.

Tried restarting again as suggested above - took some doing since I have 55 devices connected to my google wife network which has 5 pucks 3 of which are hardwired. I have a sonos bridge which is hardwired and a play 5 at the other end of the house connected via powerplug ethernet. I have microwave internet via PPPoE if that makes a difference. Worked ok for about 2 days then back to the same problem. Tried going just with the one hardwired bridge and disconnected the play 5 from the powerline ethernet but still the same problem. Need to stress though before the 9.0 update haven't had any of these freezing problems with the same set-up. No changes in the network or other devices.