Apple Inc.’s flashy new iPhones may be jamming parts of the wireless network at Duke University, where technology officials worked with the company Wednesday to fix problems before classes begin next month.

Bill Cannon, a Duke technology spokesman, said an analysis of traffic found that iPhones flooded parts of the campus’ wireless network with access requests, freezing parts of the system for 10 minutes at a time.

A single iPhone was powerful enough to cause the problem, and there are 100 to 150 of them registered on the network, Cannon said. Network administrators have noticed the problem nine times in the past week.