Apps force WiFi disconnect but iPhone shows WiFi connection

Thanks for those details TheRealRuin,

What we'd recommend then is to Contact Apple Support so that they can do some additional diagnostics with you.

Thanks for using Apple Support Communities

Hello TheRealRuin,

For Wi-Fi connectivity issues, you'll want to follow the steps below:

1. Make sure that your router is on and you're within range

If you're too far from your Wi-Fi router, you can't get a signal, so make sure that you're within range. 

2. Make sure that Wi-Fi is on and you can see your network

Go to Settings > Wi-Fi and make sure that Wi-Fi is on. Tap the name of your Wi-Fi network to join. A blue checkmark beside a network name means that you're connected.

If you see Auto Join Disabled under your Wi-Fi network name, tap it turn on Auto-Join.

3. If asked, enter your Wi-Fi password

If asked, enter the password for your Wi-Fi network. Get help if you don't know your password.

Even if you enter the correct password, you might see an "unable to join the network" message or an "incorrect password" message. Restart all of your devices, then try to enter your password again.

4. Check for issues with your Wi-Fi network

If iOS or iPadOS detects an issue with your Wi-Fi connection, you might see a Wi-Fi recommendation under the name of the Wi-Fi network that you're connected to. For example, you might see the alert "No Internet Connection." To get more information, tap the Wi-Fi network.

5. Check your cables and connections

If you still can't connect to your network or get online, make sure that your router is connected to the modem and turned on.

6. Restart

Try restarting your iOS or iPadOS device. Here's how to restart your iPhone, iPad, or iPod touch.

Then restart your router, and cable or DSL modem. To restart your router or modem, unplug it, then plug it back in. 

After you restart each device, see if you fixed the issue.

7. Still can't connect?

Reset your Network Settings. If you're using iOS or iPadOS 15 or later, tap Settings > General > Transfer or Reset [Device] > Reset > Reset Network Settings. If you're using iOS or iPadOS 14 or earlier, tap Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.

You can also find those steps in this resource: If your iPhone, iPad, or iPod touch won't connect to a Wi-Fi network - Apple Support

Should that still persist, is your iPhone all up to date? Update your iPhone, iPad, or iPod touch - Apple Support

How about those apps? How to manually update apps on your Apple device - Apple Support

Hopefully those steps and details will help to isolate this behavior further.

Take care.

TheRealRuin,

We'll need to dig a little deeper to determine if the issue could be software or hardware related. To that end, do you experience this behavior

when you're connected to another network?

To make sure that we're covering all of our bases, let's follow these steps to adjust your Wi-Fi router settings. Doing so, will ensure that your device is

securely and reliably connected to your network: Recommended settings for Wi-Fi routers and access points

We look forward to hearing back from you soon.

Best regards!

Hey there TheRealRuin,

Let's continue making sure our undrestanding of what's happening is correct, along with continuing to rule out some other possible causes:

1. You mentioned updating both the iOS and apps on your iPhone, and we see you have iOS 15. As the latest is iOS 15.5, is this the version showing within Settings > General > About?
2. You also mentioned that this occurs when using both Spotify and Roku apps to control your Sonos Bar, but if you use a built-in app(like Apple Music) with your Sonos Bar, does the same issue occur?
3. What about testing for this same issue while your iPhone is connected with a different speaker other than your Sonos Bar, or even with a pair of Bluetooth headphones?
4. Have you contacted Sonos about this to see if they can rule out anything on their end, like a possible firmware update as one example?

Cheers!