Hello @Luca Baldassar, welcome to Sonos Support!
I’m sorry to hear you are having trouble connecting your Sonos with a Vodafone router. Is this a new Sonos system you are trying to set up, or did you simply change your Wi-Fi equipment?
First I would suggest doing a quick reboot on your phone and router and try again. You can also have a look on our Support Article Connect Sonos to a new router or Wi-Fi network.
If you are still having trouble connecting your Sonos, I would recommend to reach out to our Support team for some live troubleshooting. They have tools at their disposal to provide you with information and instructions to get your system back on track.
I hope this helps.
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