Best answer by AjTrek1
Thanks for sharing the fact that your computers were employer OWNED. That's a very important piece of information that should have been shared in the beginning. By chance is the router also owned by your employer? Nonetheless, employer owned tech may always limit what you can do on a network even your private one.
More importantly, you cannot setup (i.e. configure) Sonos via a computer. You must use an iOS or Android device.
Let us know if you still require assistance. Cheers!