Suggests some kind of local wifi interference , at the very least, I’d suggest unplugging the Sonos devices in your system, then rebooting your router. Once the router comes back up, plug back in the Sonos devices. 

Hi @Notorious SQB 

Thanks for your post!

We are currently investigating the fact that a fraction of SiriusXM listeners see the message that you reported. Please be assured that we are working with Sirius on a fix for this and it is unlikely to be a fault with your system/network.

I hope this helps.

Glad to know it is not my system. Just really annoying, hope it gets fixed soon. 

Add me to the fraction of SiriusXM users with this same problem.

Any more updates on this? It is happening on a much more frequent basis now?

Anyone else having this problem?

Any further update on this? Still happening.