Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

AP541N - WPA Enterprise - Failed to connect


I am trying to configure an AP541N with WPA Enterprise. My RADIUS server is an MS ISA 2003 and is already working fine with other devices (I have a ASA5510 also configured to use RADIUS authentication with this server). When I try to connect, I am getting the following error message on the event log of the AP541N:

Aug  4 18:37:36infohostapdwlan0: IEEE 802.11 STA 00:19:d2:9e:7a:81 deauthed from BSSID 00:21:29:01:60:e0 reason 1
Aug  4 18:37:36infohostapdwlan0: STA 00:19:d2:9e:7a:81 IEEE 802.1X: Supplicant used different EAP type: 1 (Identity)
Aug  4 18:37:36warnhostapdwlan0: STA 00:19:d2:9e:7a:81 IEEE 802.1X:  authentication failed - identity 'MYDOMAIN\myuser' EAP type: 0  (Unknown)
Aug  4 18:37:36infohostapdThe wireless client with MAC address 00:19:d2:9e:7a:81 had an authentication failure.
Aug  4 18:37:36warnhostapdwlan0: STA 00:19:d2:9e:7a:81 IEEE 802.1X: could not extract EAP-Message from RADIUS message

However, I do not see any error message on the ISA side. It actually tells me that the authentication happens fine. Any suggestion how I could troubleshoot this problem?

Thank you in advance for your help and have a great day,


Everyone's tags (4)
New Member

Re: AP541N - WPA Enterprise - Failed to connect

After investigation, I found that my ISA server was not configured properly. Here is the URL I used to configure it properly: