@GregKV 

Have you been on older S2 version before the update or on S1?

If you were on S1, are you sure both devices got the update and the Connect is a S2 ready one?

I would suggest you run a diagnostic within 10 minutes of a failure to make the Connect functional and call Sonos Tech support. They can look at the information and provide you a plausible answer.

You might try this….

It may be a network issue. So you can try unplugging the Connect and rebooting your router. After the router comes back then plug in your Connect and let it come back then try integrating it with your Amp.

Thank you.