Hi dear friends I have a problem with configuration vpn & freeradius When I connect with Windows clients, displayed this error : host 127.0.0.1 port 38970, id=139, length=148 Service-Type = Framed-User Framed-Protocol = PPP User-Name = "test" MS-CHAP-Challenge = 0x089bd88d04fc9c4263f9ef8c0b7680d6 MS-CHAP2-Response = 0x5c00f40d55fc21260615b32b54a23b2b85cc00000000000000008ae59dc6918fdc10855be5c58cf809be14426f2fba994eea Calling-Station-Id = "192.168.56.100" NAS-IP-Address = 127.0.1.1 NAS-Port = 1 # Executing section authorize from file /usr/local/etc/raddb/sites-enabled/default +- entering group authorize {...} ++[preprocess] returns ok ++[chap] returns noop [mschap] Found MS-CHAP attributes. Setting 'Auth-Type = mschap' ++[mschap] returns ok ++[digest] returns noop [suffix] No '@' in User-Name = "test", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop [eap] No EAP-Message, not doing EAP ++[eap] returns noop [files] users: Matched entry DEFAULT at line 172 ++[files] returns ok ++[expiration] returns noop ++[logintime] returns noop [pap] WARNING! No "known good" password found for the user. Authentication may fail because of this. ++[pap] returns noop Found Auth-Type = MSCHAP # Executing group from file /usr/local/etc/raddb/sites-enabled/default +- entering group MS-CHAP {...} [mschap] No Cleartext-Password configured. Cannot create LM-Password. [mschap] No Cleartext-Password configured. Cannot create NT-Password. [mschap] Creating challenge hash with username: test [mschap] Told to do MS-CHAPv2 for test with NT-Password [mschap] FAILED: No NT/LM-Password. Cannot perform authentication. [mschap] FAILED: MS-CHAP2-Response is incorrect ++[mschap] returns reject Failed to authenticate the user. Using Post-Auth-Type Reject # Executing group from file /usr/local/etc/raddb/sites-enabled/default +- entering group REJECT {...} [attr_filter.access_reject] expand: %{User-Name} -> test attr_filter: Matched entry DEFAULT at line 11 ++[attr_filter.access_reject] returns updated Delaying reject of request 0 for 1 seconds Going to the next request Waking up in 0.9 seconds. Sending delayed reject for request 0 Sending Access-Reject of id 139 to 127.0.0.1 port 38970 MS-CHAP-Error = "\\E=691 R=1" Waking up in 4.9 seconds. Cleaning up request 0 ID 139 with timestamp +592 Tell me how do I solve this problem, please I really need your help