The problem appeared to be a defective cable connecting the Access manager to a media converter. The cable was replaced.
[2009-08-26 08:43:13 | Fred A Archibald]
At this point, the issue does not appear to be related to wireless but may lie with the access manager that forwards all AirBears traffic. IST staff have been notified of the issue.
Resolved as of 2009-08-26 10:05:00