Hi All, I have followed the guide for integrating freeradius with active directory which is mentioned here, http://deployingradius.com/documents/configuration/active_directory.html So finally, radtest -t mschap prashant Active@123 localhost 0 testing123 Gives me following output Sending Access-Request Id 40 from 0.0.0.0:54825 to 127.0.0.1:1812 User-Name = 'prashant' NAS-IP-Address = 127.0.1.1 NAS-Port = 0 Message-Authenticator = 0x00 MS-CHAP-Challenge = 0x42b125cb7f6408b4 MS-CHAP-Response = 0x0001000000000000000000000000000000000000000000000000c82b9abb20333db96efcb1f93beb602b39ebbd007a8c0392 Received Access-Accept Id 40 from 127.0.0.1:1812 to 127.0.0.1:54825 length 84 MS-CHAP-MPPE-Keys = 0x MS-MPPE-Encryption-Policy = Encryption-Allowed MS-MPPE-Encryption-Types = RC4-40or128-bit-Allowed But when I try to login from webpage I am getting following response (0) mschap : Client is using MS-CHAPv2 (0) mschap : Executing: /usr/bin/ntlm_auth --request-nt-key --username=%{mschap:User-Name:-None} --domain=%{%{mschap:NT-Domain}:-mycompany.local} --challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00} (0) mschap : EXPAND --username=%{mschap:User-Name:-None} (0) mschap : --> --username=prashant (0)*ERROR: mschap : No NT-Domain was found in the User-Name* (0) mschap : EXPAND --domain=%{%{mschap:NT-Domain}:-mycompany.local} (0) mschap : --> --domain=mycompany.local (0) mschap : Creating challenge hash with username: prashant (0) mschap : EXPAND --challenge=%{mschap:Challenge:-00} (0) mschap : --> --challenge=e5d49180d36eb904 (0) mschap : EXPAND --nt-response=%{mschap:NT-Response:-00} *(0) mschap : --> --nt-response=0000000e0000000000000000000000000000000000000000** **(0) ERROR: mschap : Program returned code (1) and output 'Logon failure (0xc000006d)'* (0) mschap : External script failed. (0) ERROR: mschap : External script says: Logon failure (0xc000006d) (0) ERROR: mschap : MS-CHAP2-Response is incorrect (0) [mschap] = reject (0) } # Auth-Type MS-CHAP = reject Can somebody help me to understand what exactly the issue. I am using FreeRADIUS Version 3.0.3 and Samba version 3.6.3. Thanks & Regards, Prashant