Thank you @Johan Meiring for that. It is not my intend to spam the group and asking same question again and again. Belive me that I have done everything that you said (I changed secret on the NAS and ond the radius and I restarted both,...). So please help me out with this problem. I can see that the secret is wrong. But why? First request goes through: +- entering group PAP {...} [pap] login attempt with password "1122" [pap] Using clear text password "1122" [pap] User authenticated successfully But the second what is rejected due to wrong secret. User-Name = "081609000" User-Password = "\257+\360\350" [pap] login attempt with password "¯+ðè" [pap] Using clear text password "1122" [pap] Passwords don't match SO this I am asking. If the first time secret is right and for the second request is wrong. Could the different encryption (the is sending nas) is causing the problem? I have also looked at the AVP pairs that the freeradius is sending to nas. IF I looked at the AVP pairs which are send from our radius (Ibill solution) to NAS I see that the freeradius is not sending all AVP pairs. Could this be cause of problem? I am realy greadful for you help! miha -- View this message in context: http://freeradius.1045715.n5.nabble.com/Voip-database-tp3295546p3313123.html Sent from the FreeRadius - User mailing list archive at Nabble.com.