MikroTik Dual WAN over 2 DHCP Internet Connections

/interface ethernet set [ find default-name=ether1 ] name=ether1-WAN1 set [ find default-name=ether2 ] name=ether2-WAN2 set [ find default-name=ether4 ] name=ether4-LAN /ip pool add name=dhcp_pool0 ranges=10.10.10.2-10.10.10.254 /ip dhcp-server add address-pool=dhcp_pool0 disabled=no interface=ether4-LAN name=dhcp1 /ip address add address=10.10.10.1/24 interface=ether4-LAN network=10.10.10.0 /ip dhcp-client add add-default-route=no disabled=no interface=ether1-WAN1 script="{\r\ \n :local rmark \"to_wan1\"\r\ \n :local count [/ip route print count-only where comment=\"to_wan1\"]\ \r\ \n :if (\$bound=1) do={\r\ \n :if (\$count = 0) do={\r\ \n /ip route add distance=1 gateway=\$\"gateway-address\" check\ -gateway=ping routing-mark=to_wan1 comment=\"to_wan1\"\r\ \n /ip route add distance=1 gateway=\$\"gateway-address\" check\ -gateway=ping comment=\"to_wan1\"\r\ \n } else={\r\ \n :if (\$count = 1) do={\r\ \n :local test [/ip route find where comment=\"to_wan1\"]\r\ \n :if ([/ip route get \$test gateway] != \$\"gateway-addre\ ss\") do={\r\ \n /ip route set \$test gateway=\$\"gateway-address\"\r\ \n }\r\ \n } else={\r\ \n :error \"Multiple routes found\"\r\ \n }\r\ \n }\r\ \n } else={\r\ \n /ip route remove [find comment=\"to_wan1\"]\r\ \n }\r\ \n}" add add-default-route=no disabled=no interface=ether2-WAN2 script="{\r\ \n :local rmark \"to_wan2\"\r\ \n :local count [/ip route print count-only where comment=\"to_wan2\"]\ \r\ \n :if (\$bound=1) do={\r\ \n :if (\$count = 0) do={\r\ \n /ip route add distance=1 gateway=\$\"gateway-address\" check\ -gateway=ping routing-mark=to_wan2 comment=\"to_wan2\"\r\ \n /ip route add distance=2 gateway=\$\"gateway-address\" check\ -gateway=ping comment=\"to_wan2\"\r\ \n\t} else={\r\ \n :if (\$count = 1) do={\r\ \n :local test [/ip route find where comment=\"to_wan2\"]\r\ \n :if ([/ip route get \$test gateway] != \$\"gateway-addre\ ss\") do={\r\ \n /ip route set \$test gateway=\$\"gateway-address\"\r\ \n }\r\ \n } else={\r\ \n :error \"Multiple routes found\"\r\ \n }\r\ \n }\r\ \n } else={\r\ \n /ip route remove [find comment=\"to_wan2\"]\r\ \n }\r\ \n}" /ip dhcp-server network add address=10.10.10.0/24 dns-server=8.8.8.8 gateway=10.10.10.1 /ip firewall mangle add action=accept chain=prerouting in-interface=ether1-WAN1 add action=accept chain=prerouting in-interface=ether2-WAN2 add action=mark-connection chain=prerouting dst-address-type=!local \ new-connection-mark=wan1_conn passthrough=yes per-connection-classifier=\ both-addresses-and-ports:2/0 src-address=10.10.10.0/24 add action=mark-connection chain=prerouting dst-address-type=!local \ new-connection-mark=wan2_conn passthrough=yes per-connection-classifier=\ both-addresses-and-ports:2/1 src-address=10.10.10.0/24 add action=mark-routing chain=prerouting connection-mark=wan1_conn \ new-routing-mark=to_wan1 passthrough=yes src-address=10.10.10.0/24 add action=mark-routing chain=prerouting connection-mark=wan2_conn \ new-routing-mark=to_wan2 passthrough=yes src-address=10.10.10.0/24 /ip firewall nat add action=masquerade chain=srcnat out-interface=ether1-WAN1 src-address=\ 10.10.10.0/24 add action=masquerade chain=srcnat out-interface=ether2-WAN2 src-address=\ 10.10.10.0/24 /ip route add check-gateway=ping comment=to_wan1 distance=1 gateway=192.168.1.1 \ routing-mark=to_wan1 add check-gateway=ping comment=to_wan2 distance=1 gateway=192.168.2.1 \ routing-mark=to_wan2 add check-gateway=ping comment=to_wan1 distance=1 gateway=192.168.1.1 add check-gateway=ping comment=to_wan2 distance=2 gateway=192.168.2.1