topic Re: ACS v3 & Active Directory authentication error: UNKNOWN? in Network Access Control https://community.cisco.com/t5/network-access-control/acs-v3-active-directory-authentication-error-unknown/m-p/205325#M436104 <HTML><HEAD></HEAD><BODY><P>Try troubleshooting with debug tacacs+, do post the error message you get.</P></BODY></HTML> Wed, 06 Aug 2003 13:44:21 GMT a-vazquez 2003-08-06T13:44:21Z ACS v3 & Active Directory authentication error: UNKNOWN? https://community.cisco.com/t5/network-access-control/acs-v3-active-directory-authentication-error-unknown/m-p/205324#M436102 <P>Anyone experience this problem?</P><P></P><P>We have a brand new install and Active Directory. We can authenticate using TACACS+ to a local user account, but cannot authenticate to domain users in Active Directory.</P><P></P><P>Any ideas?</P> Sun, 10 Mar 2019 14:25:46 GMT https://community.cisco.com/t5/network-access-control/acs-v3-active-directory-authentication-error-unknown/m-p/205324#M436102 jseibel 2019-03-10T14:25:46Z Re: ACS v3 & Active Directory authentication error: UNKNOWN? https://community.cisco.com/t5/network-access-control/acs-v3-active-directory-authentication-error-unknown/m-p/205325#M436104 <HTML><HEAD></HEAD><BODY><P>Try troubleshooting with debug tacacs+, do post the error message you get.</P></BODY></HTML> Wed, 06 Aug 2003 13:44:21 GMT https://community.cisco.com/t5/network-access-control/acs-v3-active-directory-authentication-error-unknown/m-p/205325#M436104 a-vazquez 2003-08-06T13:44:21Z