Hello,

Please execute the following command on SSH, set LAN3 (count from left to right, the first gigabit LAN) to WAN mode:

uci add_list firewall.cfg03dc81.network='thirdwan'
uci del_list network.cfg030f15.ports='lan2'
uci set network.thirdwan=interface
uci set network.thirdwan.proto='dhcp'
uci set network.thirdwan.device='lan2'

uci commit

/etc/init.d/firewall restart
/etc/init.d/network restart