You could submit a system diagnostic and then contact Sonos Support with the confirmation number.
https://support.sonos.com/s/article/141?language=en_US
However, as @castalla suggests, you should first check that this is a general problem, not an issue with the particular stream.
If it is a general problem, you should also try powering off your router and all Sonos gear, then power up router, then Sonos gear. This should clear any IP address conflicts.
If that doesn’t help then it is probably wireless interference.
https://support.sonos.com/s/article/3286?language=en_US