SNMP trap flow every two weeks on thursday

[Hybris]

Dear all,

I open this thread about a known problem that generates every two weeks a SNMP Trap alarmes flow on all servers between 3PM and 4PM.

Here is an example :

15:40:45 2016/08/11 PDU INFO:
notificationtype TRAP
version 1
receivedfrom UDP: [XX.XX.XX.BB]:1445->[XX.XX.XX.AA]
errorstatus 0
messageid 0
community public
transactionid 3638
errorindex 0
requestid 551785858
VARBINDS:
DISMAN-EVENT-MIB::sysUpTimeInstance type=67 value=Timeticks: (1383454101) 160 days, 2:55:41.01
SNMPv2-MIB::snmpTrapOID.0 type=6 value=OID: SNMPv2-MIB::authenticationFailure
SNMPv2-MIB::snmpTrapEnterprise.0 type=6 value=OID: NET-SNMP-MIB::netSnmpAgentOIDs.10'

The rest of the time, SNMP Traps work well ...

Can you help me to find the reason please ?

Thank you for your help.

[root@ZABBIXSERVER ~]# zabbix_server --version
Zabbix server v2.2.7 (revision 50148) (24 October 2014)
Compilation time: Oct 26 2014 22:16:26

[root@ZABBIXSERVER ~]# uname -a
Linux ZABBIXSERVER 3.8.13-26.2.2.el6uek.x86_64 #2 SMP Tue Mar 25 18:51:35 PDT 2014 x86_64 x86_64 x86_64 GNU/Linux

[root@ZABBIXSERVER ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.5 (Santiago)

Regards,

[Hybris]

Dear all,

No idea ?

Regards