Hi I found problems with derivation of Accounting to backup server when Primary Server fail. In fact, when the primary server is down, the acocunting is not sent to primary backup server (the ip, secret key and port are correct) Do you know the correct configuration for Accounting in HiperArc? The follows are the "RADIUS ACCOUNTING SETTINGS" that I have The Primary Server Status is: ENABLED Primary Server is: 192.168.0.202 Primary First Backup Server is: 192.168.0.203 Primary Second Backup Server is: 0.0.0.0 Primary Destination Port is: 1646 Primary First Backup Destination Port: 1646 Primary Second Backup Destination Port: 1646 Primary Preference: 1 Primary First Backup Preference: 2 Primary Second Backup Preference: 3 Max Primary Retransmissions: 1 The Secondary Server Status is: DISABLED Secondary Server is: 0.0.0.0 Secondary First Backup Server is: 0.0.0.0 Secondary Second Backup Server is: 0.0.0.0 Secondary Destination Port is: 1646 Secondary First Backup Destination Port: 1646 Secondary Second Backup Destination Port: 1646 Secondary Preference : 1 Secondary First Backup Preference: 2 Secondary Second Backup Preference: 3 Max Secondary Retransmissions: 1 Source Port is: 1646 Retransmission Timeout: 15 seconds Per Server Retry Count 2 Accounting Start Time: CONNECTION Log Unauthenticated Calls: ENABLED Enhanced Tunneling Acct Status : DISABLED Vendor Specific Attribute: ENABLED Call Detail Record in Accounting STOP: ENABLED Active Accounting Server (Primary): 192.168.0.202 Active Accounting Server (Secondary): 0.0.0.0 Attribute Style: STANDARD VTP Tunnel Flag: BOTH Prioritize First Server in a Server Group: DISABLED Accounting Counters Syslogs: DISABLED Accounting Counters Syslog Frequency: TWELVE HOURS Accounting Counters Syslog Reset: DISABLED