Electrical outage causes WAN in bridge mode to drop

[gdarends]

Hi,

I have an ARRIS cable modem/router that I set in bridge mode and this works fine.
But everytime there is an electrical outage it loses connection and I normally do a hard reset of the modem and re-enable bridge mode and then it starts to work again. It doesn't always work though. I sometimes do a couple of resets of pfsense and the modem and then it pops back up. But today it's not working. On the dashboard it says:

WAN_DHCP 
181.xx.xx.1	0.0ms	0.0ms	100%	Offline, Packetloss

Here is some log that I collected:

Mar 15 13:01:59 dpinger 74763   WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 13:02:00 dpinger 74763   WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 13:02:00 dpinger 74763   WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 13:02:01 dpinger 74763   WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 13:02:15 dpinger 49927   send_interval 500ms loss_interval 2000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 500ms loss_alarm 20% dest_addr 192.168.0.1 bind_addr 192.168.0.229 identifier "WAN_DHCP "
Mar 15 13:02:43 dpinger 49927   WAN_DHCP 192.168.0.1: Alarm latency 1449us stddev 754us loss 21%
Mar 15 13:02:56 dpinger 49927   WAN_DHCP 192.168.0.1: Clear latency 4342us stddev 22537us loss 16%
Mar 15 13:03:02 dpinger 49927   WAN_DHCP 192.168.0.1: sendto error: 65
Mar 15 13:03:03 dpinger 49927   WAN_DHCP 192.168.0.1: sendto error: 65
Mar 15 13:03:03 dpinger 49927   WAN_DHCP 192.168.0.1: sendto error: 65
Mar 15 13:03:04 dpinger 49927   WAN_DHCP 192.168.0.1: sendto error: 65
Mar 15 13:03:54 dpinger 49927   WAN_DHCP 192.168.0.1: Alarm latency 81183us stddev 333846us loss 21%

Mar 15 12:39:34 dpinger 437 WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 12:48:19 dpinger 88679   send_interval 500ms loss_interval 2000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 500ms loss_alarm 20% dest_addr 192.168.100.254 bind_addr 192.168.100.165 identifier "WAN_DHCP "
Mar 15 12:49:07 dpinger 88679   WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 12:49:07 dpinger 88679   WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 12:49:08 dpinger 88679   WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 12:49:08 dpinger 88679   WAN_DHCP 192.168.100.254: sendto error: 65
Mar 15 12:49:40 dpinger 88679   WAN_DHCP 192.168.100.254: Alarm latency 22814us stddev 167749us loss 22%
Mar 15 12:49:44 dpinger 74763   send_interval 500ms loss_interval 2000ms time_period 60000ms report_interval 0ms data_len 1 alert_interval 1000ms latency_alarm 500ms loss_alarm 20% dest_addr 192.168.100.254 bind_addr 192.168.100.165 identifier "WAN_DHCP "
Mar 15 12:50:00 dpinger 74763   WAN_DHCP 192.168.100.254: Alarm latency 1328us stddev 389us loss 23%

also here is my WAN config:

<wan>
    <if>mvneta0.4090</if>
    <descr><![CDATA[WAN]]></descr>
    <spoofmac></spoofmac>
    <alias-address></alias-address>
    <alias-subnet>32</alias-subnet>
    <blockpriv></blockpriv>
    <blockbogons></blockbogons>
    <enable></enable>
    <ipaddr>dhcp</ipaddr>
    <dhcphostname></dhcphostname>
    <dhcprejectfrom></dhcprejectfrom>
    <adv_dhcp_pt_timeout></adv_dhcp_pt_timeout>
    <adv_dhcp_pt_retry></adv_dhcp_pt_retry>
    <adv_dhcp_pt_select_timeout></adv_dhcp_pt_select_timeout>
    <adv_dhcp_pt_reboot></adv_dhcp_pt_reboot>
    <adv_dhcp_pt_backoff_cutoff></adv_dhcp_pt_backoff_cutoff>
    <adv_dhcp_pt_initial_interval></adv_dhcp_pt_initial_interval>
    <adv_dhcp_pt_values>SavedCfg</adv_dhcp_pt_values>
    <adv_dhcp_send_options></adv_dhcp_send_options>
    <adv_dhcp_request_options></adv_dhcp_request_options>
    <adv_dhcp_required_options></adv_dhcp_required_options>
    <adv_dhcp_option_modifiers></adv_dhcp_option_modifiers>
    <adv_dhcp_config_advanced></adv_dhcp_config_advanced>
    <adv_dhcp_config_file_override></adv_dhcp_config_file_override>
    <adv_dhcp_config_file_override_path></adv_dhcp_config_file_override_path>
    <dhcpcvpt>bk</dhcpcvpt>
    <switchif>switch0.port3</switchif>
</wan>