FreeRadius 2.2.8 running on Ubuntu 14.04 LTS sql_log is enabled in the accounting section of /sites-enabled/default When I execute radsqlrelay it repeatedly dumps the following error to the screen and no records are created on the target server /usr/bin/radsqlrelay -x -1 -b radius -d mysql -h xxx.xxx.xxx.xxx -u radrelay_user -p somepassword /var/log/freeradius/radacct/sql-relay Incorrect datetime value: '0' for column 'acctstarttime' at row 1 Incorrect datetime value: '0' for column 'acctstarttime' at row 1 Incorrect datetime value: '0' for column 'acctstarttime' at row 1 And indeed the file shows this: head /var/log/freeradius/radacct/sql-relay INSERT INTO radacct (AcctSessionId, UserName, NASIPAddress, FramedIPAddress, AcctStartTime, AcctStopTime, AcctSessionTime, AcctTerminateCause) VALUES ('810001a7', 'acct203', 'xxx.xxx.37.1', 'xxx.xxx.3.50', '0', '0', '4801',''); INSERT INTO radacct (AcctSessionId, UserName, NASIPAddress, FramedIPAddress, AcctStartTime, AcctStopTime, AcctSessionTime, AcctTerminateCause) VALUES ('810001a6', 'acct2150', 'xxx.xxx.37.1', 'xxx.xxx.3.16', '0', '0', '5400',''); But I am also logging to a local sql database and I see account start times there acctsessionid acctuniqueid username nasipaddress nasportid nasporttype acctstarttime acctstoptime acctsessiontime 810001a7 b051e93c387cc6be acct2203 xxx.xxx.37.1 15729080 Ethernet 2016-11-27 11:09:51 *NULL* 4801 810001a6 830d03bc3cbe59de acct2150 xxx.xxx.37.1 15729079 Ethernet 2016-11-27 11:03:00 *NULL* 5400 I must be missing something but I can find very little info on radsqlrelay other than the man Thanks, Ian