OK, I comment all unix section in site-enable/default, but result is the same! In pucture below I thurned on debug on cisco about accounting, therefore cisco work correctly, but radius server not recieve Accounting-Request? Why? 001534: Mar 6 22:38:57: tty2 AAA/AUTHOR/EXEC (3942780195): Port='tty2' list='' service=EXEC 001535: Mar 6 22:38:57: AAA/AUTHOR/EXEC: tty2 (3942780195) user='userA' 001536: Mar 6 22:38:57: tty2 AAA/AUTHOR/EXEC (3942780195): send AV service=shell 001537: Mar 6 22:38:57: tty2 AAA/AUTHOR/EXEC (3942780195): send AV cmd* 001538: Mar 6 22:38:57: tty2 AAA/AUTHOR/EXEC (3942780195): found list "default" 001539: Mar 6 22:38:57: tty2 AAA/AUTHOR/EXEC (3942780195): Method=radius (radius) 001540: Mar 6 22:38:57: AAA/AUTHOR (3942780195): Post authorization status = PASS_ADD 001541: Mar 6 22:38:57: AAA/AUTHOR/EXEC: Processing AV service=shell 001542: Mar 6 22:38:57: AAA/AUTHOR/EXEC: Processing AV cmd* 001543: Mar 6 22:38:57: AAA/AUTHOR/EXEC: Processing AV priv-lvl=1 001544: Mar 7 01:39:17 MSK: %RADIUS-3-NOACCOUNTINGRESPONSE: Accounting message Start for session 000000FB failed to receive Accounting Response. 001545: Mar 6 22:39:34: AAA/ACCT/CMD: User userA, Port tty2, Priv 1: "ping 192.168.101.147 <cr>" 001546: Mar 6 22:39:34: AAA/ACCT/CMD: Found list "default" 001547: Mar 6 22:39:34: AAA/ACCT: user userA, acct type 3 (2924816630): Method=radius (radius)