[@johnhiler Member 16 years, 11 months ago]

Several other users of that plugin reported similar issues on the comments of the plugin page:

https://bbpress.org/plugins/topic/wordpress-bbpress-syncronization/

It seems like one cause of that was that some servers don’t allow outgoing connections:

https://bbpress.org/plugins/topic/wordpress-bbpress-syncronization/page/9/

Maybe check with your host about that?