Two system crash

[santiagohoyos]

Hi, i have two pfsense in active-pasove model.

some time at day these firewall crash an reboot, when  the principal crash the backup up and some time it crash to.

they don't have any strange setup, only firewall rule, CARP, nat, openvpn, dhcp, dns and squid.

The machine is a Pentium(R) Dual-Core CPU E5300 whit 2GB in both machine.

The network cars is :

WAN1 (wan)      -> re0     
LAN (lan)      -> em0       
WAN2 (opt1)    -> re1       
SYNCLAN (opt2)  -> re2

The only not normal is that the log and crash report show that a one o two pc change the MAC address in loop, the log show this :

….
<6>arp: 192.168.0.141 moved from ac:22:0b:b6:0f:6f to 3c:47:11:25:a0:43 on em0
<6>arp: 192.168.0.141 moved from 3c:47:11:25:a0:43 to ac:22:0b:b6:0f:6f on em0
<6>arp: 192.168.0.141 moved from ac:22:0b:b6:0f:6f to 3c:47:11:25:a0:43 on em0
<6>arp: 192.168.0.141 moved from 3c:47:11:25:a0:43 to ac:22:0b:b6:0f:6f on em0
<6>arp: 192.168.0.114 moved from b8:ae:ed:fd:b6:34 to 10:3b:59:d7:3a:22 on em0
<6>arp: 192.168.0.114 moved from 10:3b:59:d7:3a:22 to b8:ae:ed:fd:b6:34 on em0
<6>arp: 192.168.0.224 moved from 58:00:e3:b8:2e:37 to 24:db:ed:1b:2a:2d on em0
<6>arp: 192.168.0.224 moved from 24:db:ed:1b:2a:2d to 58:00:e3:b8:2e:37 on em0
<6>arp: 192.168.0.224 moved from 58:00:e3:b8:2e:37 to 24:db:ed:1b:2a:2d on em0
<6>arp: 192.168.0.224 moved from 24:db:ed:1b:2a:2d to 58:00:e3:b8:2e:37 on em0
....

i suppose that the network card don't support it and fail.

Any idea ? i need help.

I add the crash report and state of machine.
[fw01 3-15-pm .zip](/public/imported_attachments/1/fw01 3-15-pm .zip)