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    Gateway flipping many times per second on multi-WAN (after manual change)

    Scheduled Pinned Locked Moved Routing and Multi WAN
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      pfpv
      last edited by pfpv

      I am on triple-WAN with failover: cable -> DSL -> cell modem. Cable had some intermittent packet loss, disconnects. pfSense was failing over to DSL and back every few minutes. I got sick of it and went to the Gateway Group setup and assigned Tier 1 (was 2) to DSL and Tier 2 (was 1) to cable WAN. After I pressed Save and Apply Changes the interface kind of froze - the page was not going anywhere, the server was not responding. I waited and waited, went to Dashboard, it also took a long while to load. I went to check logs and found the the system log was completely full of gateway flipping entries, several times per second. See below.

      Aug 4 18:51:00 	php-fpm 	202 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:51:00 	php-fpm 	202 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:51:00 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:51:00 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:51:00 	php-fpm 	202 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:51:00 	php-fpm 	202 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:51:00 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:51:00 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:51:00 	php-fpm 	454 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:51:00 	php-fpm 	454 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:59 	php-fpm 	454 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:59 	php-fpm 	454 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:59 	php-fpm 	454 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:59 	php-fpm 	454 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:59 	php-fpm 	454 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:59 	php-fpm 	454 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:59 	php-fpm 	454 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:59 	php-fpm 	454 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:59 	php-fpm 	94796 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:59 	php-fpm 	94796 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:59 	php-fpm 	94796 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:59 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:59 	php-fpm 	98601 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:59 	php-fpm 	48340 	/rc.dyndns.update: phpDynDNS (): (Success) IP Address Updated Successfully!
Aug 4 18:50:59 	php-fpm 	48340 	/rc.dyndns.update: phpDynDNS: updating cache file /conf/dyndns_PreferWANcustom''2.cache: x.x.x.x [WAN_DHCP IP]
Aug 4 18:50:59 	php-fpm 	89297 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:58 	php-fpm 	73902 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:58 	php-fpm 	775 	/rc.dyndns.update: phpDynDNS (): (Success) IP Address Updated Successfully!
Aug 4 18:50:58 	php-fpm 	775 	/rc.dyndns.update: phpDynDNS: updating cache file /conf/dyndns_PreferWANcustom''0.cache: y.y.y.y [WAN2_PPPOE IP]
Aug 4 18:50:58 	php-fpm 	202 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:58 	php-fpm 	454 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:58 	php-fpm 	454 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:58 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:58 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:58 	php-fpm 	454 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:58 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:58 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.
Aug 4 18:50:57 	php-fpm 	94796 	/rc.dyndns.update: Gateway, switch to: WAN_DHCP
Aug 4 18:50:57 	php-fpm 	48340 	/rc.dyndns.update: phpDynDNS (): (Success) IP Address Updated Successfully!
Aug 4 18:50:57 	php-fpm 	48340 	/rc.dyndns.update: phpDynDNS: updating cache file /conf/dyndns_PreferWANcustom''1.cache: x.x.x.x [this is the WAN_DHCP IP, not WAN2_PPPOE]
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Default gateway setting Interface WAN2_PPPOE Gateway as default.
Aug 4 18:50:57 	php-fpm 	775 	/rc.dyndns.update: Gateway, switch to: WAN2_PPPOE
Aug 4 18:50:57 	php-fpm 	98601 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:57 	php-fpm 	89297 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:56 	php-fpm 	73902 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:56 	php-fpm 	202 	/rc.dyndns.update: phpDynDNS (): No change in my IP address and/or 15 days has not passed. Not updating dynamic DNS entry.
Aug 4 18:50:56 	php-fpm 	202 	/rc.dyndns.update: Default gateway setting Interface WAN_DHCP Gateway as default.

      The third gateway was not affected.

      I wonder if the developers look here. Along with the previous unexplained issue with multi-WAN: No dpinger session running for gateway - for no reason when switching WANs it looks like something is not right with the multi-WAN failover.

      This is the first time such thing happened. When the sporadic packet loss on cable stopped I switched the cable WAN to Tier 1 without issues. A few hours later I rebooted pfSense in hopes it won't happen again. So, far so good but I haven't tried changing gateways since. I am on Plus 22.05.

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