HI after following http://deployingradius.com/documents/configuration/active_directory.html and running: radtest -t mschap myNT_user myNTpass 192.168.1.250 0 client-secret freeradius -XX Thu Aug 29 13:29:50 2019 : Debug: (10) modsingle[authorize]: returned from pap (rlm_pap) Thu Aug 29 13:29:50 2019 : Debug: (10) [pap] = noop Thu Aug 29 13:29:50 2019 : Debug: (10) } # authorize = ok Thu Aug 29 13:29:50 2019 : Debug: (10) Found Auth-Type = mschap Thu Aug 29 13:29:50 2019 : Debug: (10) # Executing group from file /etc/freeradius/3.0/sites-enabled/default Thu Aug 29 13:29:50 2019 : Debug: (10) authenticate { Thu Aug 29 13:29:50 2019 : Debug: (10) modsingle[authenticate]: calling mschap (rlm_mschap) Thu Aug 29 13:29:50 2019 : WARNING: (10) mschap: No Cleartext-Password configured. Cannot create NT-Password Thu Aug 29 13:29:50 2019 : WARNING: (10) mschap: No Cleartext-Password configured. Cannot create LM-Password Thu Aug 29 13:29:50 2019 : Debug: (10) mschap: Client is using MS-CHAPv1 with NT-Password Thu Aug 29 13:29:50 2019 : ERROR: (10) mschap: FAILED: No NT/LM-Password. Cannot perform authentication Thu Aug 29 13:29:50 2019 : ERROR: (10) mschap: MS-CHAP2-Response is incorrect Thu Aug 29 13:29:50 2019 : Debug: (10) modsingle[authenticate]: returned from mschap (rlm_mschap) Thu Aug 29 13:29:50 2019 : Debug: (10) [mschap] = reject Thu Aug 29 13:29:50 2019 : Debug: (10) } # authenticate = reject Thu Aug 29 13:29:50 2019 : Debug: (10) Failed to authenticate the user Thu Aug 29 13:29:50 2019 : Debug: (10) Using Post-Auth-Type Reject I hate to ask but do you have any Ideas? Regards