Hi Gerald, there's latest network adapter driver package version 19.5 posted in downloadcenter.intel.com last 10/28/14, please try it out:
Thanks for the information.
In the meanwhile, we found the problem in the Cisco configuration.
The laptops I was using were connected to the network through an unmanaged switch connected to the LAN.
The Cisco switch was thinking I was still connected on this port because others computers are connected on it so the port was never reset.
Forgot to post the information because I left the office for 2 weeks ;-)
Sorry for digging up this old thread, I am puzzled as to why the Targus adapter worked but the Intel failed under the same setup.
I too experienced similar error and symptom with Intel adapter (different models of adapter), after downloading and installed the latest driver from Intel Download Center, some issues involving the 802.1x supplicant not responding were resolved.