Strange as the new Sonos App is working absolutely fine at our Home & Holiday Home and not seen a crash.. it works with our mobile router too when we go travelling in the camper van. Some screen capture examples are attached.
Maybe you have some networking issues. Have you spoken to Sonos Support? If not here’s the link to contact them…
https://support.sonos.com/s/contact
Meanwhile here’s some info. and suggestions you might want to consider…
Checkout this document on WiFi interference…
https://support.sonos.com/en-gb/article/reduce-wireless-interference
Don’t use wired SonosNet connection (except as a last resort), use your Router/Mesh WiFi signal instead, it’s usually much quicker.
Set the routers 2.4Ghz WiFi Band to use a non-overlapping ‘fixed’ channel (1, 6, or 11) with a channel-width of 20Mhz only.
The routers 5Ghz band is usually fine so leave that as it is, but for stability fix its channels (rather than have them auto-select on startup). Try to steer compatible Sonos players onto the 5Ghz band and ensure they have an SNR level of 45dB, or above, where practicable, see this link…
https://support.sonos.com/en-us/article/understanding-the-network-details-section-in-the-sonos-app
If such connections are not achievable, then consider trying the more penetrating/longer reaching 2.4Ghz band instead, or wiring a ‘standalone’ product, but always disable its WiFi adapter when not using SonosNet, but do not disable the WiFi adapter on a standalone Home Theatre device if you plan to later use it with surrounds/Sub . In fact I don’t recommend wiring a HT product at all, as it will create a SonosNet ‘root bridge’ in some instances, unless you are using SonosNet, as the last resort.
It’s true to say that some routers/mesh setups may work better with Sonos in SonosNet mode - Google WiFi is an example where SonosNet sometimes works better than wireless mode.
If using SonosNet, wire a device to the router, or to a "switch" linked directly off the router only. Keep any wired/or wireless devices one metre away (minimum) from any router, WiFi AP or other wireless device where practicable.
Never wire anything ‘Sonos’ to a WiFi mesh satellite Hub
Do not use wireless range extenders, or power-line (EoP) adapters.
Set all Sonos IP addresses static, high up in the LAN subnet out the way, in the routers DHCP reservation table - all routers are different, so maybe read the user manual if you do not know already how to make a device network address static.
Now onto the Sonos controller device…
Disable MAC spoofing (Private Address) it can cause issues with some routers. It’s often unnecessary to use that feature on a Home WiFi network.
Disable WiFi calling
Disable Mobile Data Access use for the Sonos App
Enable the following 5 things for the Sonos App to run smoothly…
- LAN Access
- Bluetooth
- Location (precise)
- Microphone
- Notifications
Ensure the mobile controller is not using…
- VPN Client
- Firewall
- Anti-virus
- Other security software
Ensure LAN firewalls, or products like Pi-Hole, are not blocking Sonos cloud access
Some routers may have multicasting over the LAN set as ‘disabled’ - check the router configuration pages and enable it where necessary - (it may say IGMP Snooping or IGM Proxy etc.)
Whilst in the router settings, disable QoS and/or any Airtime Fairness features.
Remember too that the Sonos App now only sees local library folders that are shared using SMBv2 or higher - (SMBv1/HTTP shares are no longer supported since the May 7th update)
Hope those things assist.