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updated to the new app version 80.02.04 yesterday. After the update, the app prompted for another update, which consistently results in error code 30.

Today, I tried the following troubleshooting steps:

    •    Performing a factory reset
    •    Connecting via an Ethernet cable
    •    Resetting my router
    •    Reinstalling the app
    •    Connecting using a mobile hotspot
    •    Using different devices for the update (both iOS and Android)
    •    Taking my Arc to the office and connecting to the company WiFi
    •    Downloading the old version of the app

Unfortunately, none of these steps have resolved the issue.

I feel like I’ve tried everything possible and I’m feeling quite desperate. Any help or suggestions would be greatly appreciated.

After a quick Google of your title I found this that may help:-

https://support.sonos.com/en-gb/article/error-30-when-updating-sonos

But you have tried most so maybe try contacting the telephone support desk, this is promarily a user forum rather than pure Sonos support