Hi, I am attaching error logs of freeradius getting crashed randomly during day. Thu Mar 1 11:45:22 2018 : Info: (1304581) eap_peap: Look for "reject" or "fail". Those earlier messages will tell you Thu Mar 1 11:45:22 2018 : Info: (1304581) eap_peap: what went wrong, and how to fix the problem Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Need 7 more connections to reach 10 spares Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Opening additional connection (3869), 1 of 21 pending slots used Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Need 6 more connections to reach 10 spares Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Opening additional connection (3870), 2 of 21 pending slots used Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Need 5 more connections to reach 10 spares Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Opening additional connection (3871), 3 of 21 pending slots used Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Need 4 more connections to reach 10 spares Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Opening additional connection (3872), 4 of 21 pending slots used Thu Mar 1 11:45:24 2018 : Error: (1304488) Ignoring duplicate packet from client XXXXXXXX port 44953 - ID: 35 due to unfinished request in component authorize module Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Need 3 more connections to reach 10 spares Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Opening additional connection (3873), 5 of 21 pending slots used Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Need 2 more connections to reach 10 spares Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Opening additional connection (3874), 6 of 21 pending slots used Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Need 1 more connections to reach 10 spares Thu Mar 1 11:45:24 2018 : Info: rlm_sql (sql): Opening additional connection (3875), 7 of 21 pending slots used Thu Mar 1 11:45:24 2018 : Info: (1304661) eap_peap: The users session was previously rejected: returning reject (again.) Thu Mar 1 11:45:24 2018 : Info: (1304661) eap_peap: This means you need to read the PREVIOUS messages in the debug output Thu Mar 1 11:45:24 2018 : Info: (1304661) eap_peap: to find out the reason why the user was rejected Thu Mar 1 11:45:24 2018 : Info: (1304661) eap_peap: Look for "reject" or "fail". Those earlier messages will tell you Thu Mar 1 11:45:24 2018 : Info: (1304661) eap_peap: what went wrong, and how to fix the problem Thu Mar 1 11:45:25 2018 : Error: (1304618) Ignoring duplicate packet from client XXXXXXXX port 59536 - ID: 16 due to unfinished request in component accounting module Thu Mar 1 11:45:26 2018 : Error: (1304488) Ignoring duplicate packet from client XXXXXXXX port 44953 - ID: 35 due to unfinished request in component authorize module Thu Mar 1 11:45:26 2018 : Error: (1304633) Ignoring duplicate packet from client XXXXXXXX port 41018 - ID: 188 due to unfinished request in component accounting module Thu Mar 1 11:45:26 2018 : Error: rlm_eap (EAP): No EAP session matching state 0x947bd4f29372cdbc Thu Mar 1 11:45:26 2018 : Error: rlm_eap (EAP): No EAP session matching state 0x947bd4f29372cdbc Thu Mar 1 11:45:27 2018 : Error: (1304618) Ignoring duplicate packet from client XXXXXXXX port 59536 - ID: 16 due to unfinished request in component accounting module Thu Mar 1 11:45:28 2018 : Error: (1304488) Ignoring duplicate packet from client XXXXXXXX port 44953 - ID: 35 due to unfinished request in component authorize module Thu Mar 1 11:45:28 2018 : ERROR: (1304488) ERROR: Timeout waiting for child Thu Mar 1 11:45:28 2018 : Error: (1304633) Ignoring duplicate packet from client XXXXXXXX port 41018 - ID: 188 due to unfinished request in component accounting module Thu Mar 1 11:45:29 2018 : Error: (1304618) Ignoring duplicate packet from client XXXXXXXX port 59536 - ID: 16 due to unfinished request in component accounting module Thu Mar 1 11:45:30 2018 : Error: (1304633) Ignoring duplicate packet from client XXXXXXXX port 41018 - ID: 188 due to unfinished request in component accounting module Thu Mar 1 11:45:30 2018 : Error: (1304757) Ignoring duplicate packet from client XXXXXXXX port 44953 - ID: 54 due to unfinished request in component authorize module Thu Mar 1 11:45:31 2018 : Error: (1304618) Ignoring duplicate packet from client XXXXXXXX port 59536 - ID: 16 due to unfinished request in component accounting module Thu Mar 1 11:45:32 2018 : Error: (1304633) Ignoring duplicate packet from client XXXXXXXX port 41018 - ID: 188 due to unfinished request in component accounting module Thu Mar 1 11:45:32 2018 : Error: (1304757) Ignoring duplicate packet from client XXXXXXXX port 44953 - ID: 54 due to unfinished request in component authorize module Thu Mar 1 11:45:32 2018 : Error: rlm_eap (EAP): No EAP session matching state 0x3b06b4a33e01ad19 Thu Mar 1 11:45:32 2018 : Error: rlm_eap (EAP): No EAP session matching state 0x3b06b4a33e01ad19 Thu Mar 1 11:45:33 2018 : Error: (1304618) Ignoring duplicate packet from client XXXXXXXX port 59536 - ID: 16 due to unfinished request in component accounting module Thu Mar 1 11:45:34 2018 : Error: (1304633) Ignoring duplicate packet from client XXXXXXXX port 41018 - ID: 188 due to unfinished request in component accounting module Thu Mar 1 11:45:34 2018 : Error: rlm_eap (EAP): No EAP session matching state 0x4aaec49748aadd2b Thu Mar 1 11:45:34 2018 : Error: rlm_eap (EAP): No EAP session matching state 0x4aaec49748aadd2b Thu Mar 1 11:45:34 2018 : ERROR: (1304618) ERROR: Timeout waiting for child Thu Mar 1 11:45:34 2018 : ERROR: (1304633) ERROR: Timeout waiting for child This is the last log which comes. I have database server modules enabled of sql and ldap. I have monitored them and there is no considerable load on them when this crash happens. I know some module is timing out but i cant quite figure out which. I cannot run it in debug as the crash happens randomly during the day and I have huge amount of users authenticating. How can I debug it and find which module is unresponsive while crash? Just point a finger to a direction i will find the way. PS: freeradius is an awesome software so a big thanks to developers Allan , Arran and everybody Regards, Anirudh Malhotra Mail: 8zero2.in@gmail.com Facebook: www.facebook.com/8zero2 Twitter: @8zero2_in Blog: blog.8zero2.in