topic Re: PEAP problem in Wireless https://community.cisco.com/t5/wireless/peap-problem/m-p/588901#M25838 <HTML><HEAD></HEAD><BODY><P>A Windows MS-PEAP supplicant upgraded to XP SP2 is unable successfully to reauthenticate to an ACS 3.2 server.</P><P>This behavior is independent of the client adapter hardware.If the client is downgraded to XP SP1, it will reauthenticate</P><P>with no problem; if the SP2 client authenticates to IAS instead of ACS, it will reauthenticate with no problem.</P><P>At the time that the reauthentication from the MS-PEAP XP SP2 client fails, ACS will log a "NAS duplicated authentication</P><P>attempt" error.This behavior is independent of the software running on the access point.</P></BODY></HTML> Thu, 17 Aug 2006 18:02:07 GMT wong34539 2006-08-17T18:02:07Z PEAP problem https://community.cisco.com/t5/wireless/peap-problem/m-p/588900#M25837 <P>Folks,</P><P></P><P>I?m configuring PEAP with AP1131, ACS 4.0 and AD ( Windows 2000 ).</P><P></P><P>I used the follow doc to do this:</P><P></P><P><A class="jive-link-custom" href="http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_configuration_example09186a00801df0e4.shtml#acs-1" target="_blank">http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_configuration_example09186a00801df0e4.shtml#acs-1</A></P><P></P><P>Please, see the logs ( ACS, AP )into attached file.</P><P></P><P>I perceived that the ACS certificate doesn?t have the EKU field. How I fix it?</P><P></P><P>tks</P><P></P><P> </P><P></P> Sun, 04 Jul 2021 19:50:20 GMT https://community.cisco.com/t5/wireless/peap-problem/m-p/588900#M25837 rdamaso 2021-07-04T19:50:20Z Re: PEAP problem https://community.cisco.com/t5/wireless/peap-problem/m-p/588901#M25838 <HTML><HEAD></HEAD><BODY><P>A Windows MS-PEAP supplicant upgraded to XP SP2 is unable successfully to reauthenticate to an ACS 3.2 server.</P><P>This behavior is independent of the client adapter hardware.If the client is downgraded to XP SP1, it will reauthenticate</P><P>with no problem; if the SP2 client authenticates to IAS instead of ACS, it will reauthenticate with no problem.</P><P>At the time that the reauthentication from the MS-PEAP XP SP2 client fails, ACS will log a "NAS duplicated authentication</P><P>attempt" error.This behavior is independent of the software running on the access point.</P></BODY></HTML> Thu, 17 Aug 2006 18:02:07 GMT https://community.cisco.com/t5/wireless/peap-problem/m-p/588901#M25838 wong34539 2006-08-17T18:02:07Z