There are system requirements for Sonos, satellite connections are unsupported

https://support.sonos.com/en-us/article/sonos-system-requirements

Use Google or the search function on this very forum and you will find a few posts about Starlink and how some users have managed to make it work, good luck. Not sure what your issue is with Siri is but you are going to need Internet working first.

I found out that Starlink was not supported after a day and a half doing “factory resets” and other suggestions to try to get my system back working. Then after about 30 minutes on the phone I was told that Sonos wouldn’t work with Starlink. My question is why?  Why would you not work that out?  Anyway l’m stuck with a bunch of equipment that doesn’t work. Thanks

Siri a cutting edge technology??? It’s almost 15 years old.

I don’t know that much about starlink, but Sonos requires a router that allows peer to peer communciation, not just access to the internet.  If the Starlink doesn’t provide that, that would be the issue.  It may be that you can purchase a standalone router, to work around the issue but I don’t know.  Probably best to contact Sonos for assistance if you have not done so already.

Are your Sonos Ones (I assume that’s what you mean by S1) and sub bonded to the Arc?  If so, they should be playing audio along with your Arc as the Arc creates a separate network between the device.  If they are setup as separate rooms, than that would be an issue.

I don’t know what you mean by ‘work with Siri’?  You can use Siri on your phone to airplay audio from your to Sonos, if you had a supported home network.   Sonos doesn’t have Siri as an on device voice assistant because Apple doesn’t allow Siri on non-Apple devices.  Do you have some other use for Siri with Sonos?

I’m not a Starlink user. It’s my understanding that there is a Starlink accessory available that allows Starlink to connect with the local network. Using this adapter you can then add a local wireless router to manage your network.

Satellite Internet connection is NOT high end. It's a workaround for places where you don't have access to FTTH / DOCSIS (cable) / xDSL.

High end for Internet connection is FTTH.

I bought the Starlink adaptor worked fine the. All of a sudden the Sonos has gone off and won’t connect to Internet , it won’t even find the products been trying all day . Sonos are of no help . 
I’ve tried reset

i tried hard wire 

I tried deleting the app 

I tried everything I can thing of 

any updates on why suddenly it won’t connect to Internet please 4 expensive speakers and no music