Spanning Sync Service Restored
This afternoon at 3:03pm CDT (20:03 GMT) our hosting provider experienced a power outage which took our servers offline. The problem has since been fixed, and our web and application servers are back online.
If you're seeing an error message in the Spanning Sync preference pane about "an unknown error", please quit and restart Spanning Sync to clear it.
Thanks to everyone affected by the outage for your patience.