https://community.cisco.com/t5/wireless/802-1x-authentication-failure/m-p/2682472#M68888 <P>I have a Cisco 5508 Wireless Controller with a mixture of 1142, 3502 and 3602 access points.&nbsp; My problem is that I have users that keep getting an unauthenticated error, I have it set up with a Radius server handing out the addresses connecting through AD.&nbsp; When looking through the logs on the WLC I find users with no IP address, I then put their mac address into my Cisco Prime Client troubleshooter and it comes back with the 802.1X Authentication Failure.&nbsp; Anyone else experience this or know an answer?</P> Mon, 05 Jul 2021 10:07:03 GMT brownrl 2021-07-05T10:07:03Z https://community.cisco.com/t5/wireless/802-1x-authentication-failure/m-p/2682472#M68888 <P>I have a Cisco 5508 Wireless Controller with a mixture of 1142, 3502 and 3602 access points.&nbsp; My problem is that I have users that keep getting an unauthenticated error, I have it set up with a Radius server handing out the addresses connecting through AD.&nbsp; When looking through the logs on the WLC I find users with no IP address, I then put their mac address into my Cisco Prime Client troubleshooter and it comes back with the 802.1X Authentication Failure.&nbsp; Anyone else experience this or know an answer?</P> Mon, 05 Jul 2021 10:07:03 GMT https://community.cisco.com/t5/wireless/802-1x-authentication-failure/m-p/2682472#M68888 brownrl 2021-07-05T10:07:03Z https://community.cisco.com/t5/wireless/802-1x-authentication-failure/m-p/2682473#M68889 <P>what do&nbsp;the log on the NPS server say about the users that are unable to authenticate?</P><P>&nbsp;</P><P>HTH,</P><P>Steve</P> Thu, 30 Apr 2015 17:19:26 GMT https://community.cisco.com/t5/wireless/802-1x-authentication-failure/m-p/2682473#M68889 Stephen Rodriguez 2015-04-30T17:19:26Z