From my eperience with networks (9+ years), the bridge will be unpingable when connecting from the wireless side, this is due to the fact that it is transparent to all but the wired side when in bridge mode. You should be able to ping the crio though over the wireless connection. I was successful in performing this yesterday.
Basically the bridge is acting as a media converter, converting a wired transmission media to a wireless transmission media, and vice versa.