We are developing a security scheme in which we use EAP TTLS MS CHAP v2 with Proxy. The TTLS phase is done with the first AAA server, and the second step, with MS CHAP v2, is proxied to another AAA (which is an LDAP server). When the first AAA server is FR and the second one is also FV, then authentication is OK. When the second AAA server is ACS (Cisco) or NPS (MS), the MS CHAP v2 authentication fails. We preformed troubleshooting and elimination testing which indicate the issue is with the pwd. Not with the user name. For example it also fails with the local DB of the 2nd AAA server. Also the verbose error log shows the user account is found. Looks like something is wrong with the pwd hash. will most appreciate your expert opinion. Thnks Sagi -- View this message in context: http://old.nabble.com/FR-proxy-to-ACS-and-NPS-with-MS-CHAP-v2-tp29132664p291... Sent from the FreeRadius - User mailing list archive at Nabble.com.