Sonos on an Indigo Server running on a VPN

Wondering if there's a solution to this: My server is connected to a VPN. If I disable the VPN the Sonos Plugin seems to be working properly (though it throws the error "Cannot start HTTP Streamer on None: [Errno 8] nodename nor servname provided, or not known"). When connected to the VPN, however I'm unable to see the status of my Sonos devices.

EDIT: Okay, it seems to be working now. Not sure what happened. Still getting Errno 8, though.

Have you selected an interface for communication in the plugin menu? That may help prevent this from happening again.