You can try with this script to solve your problem , but it just with two lines ,you can extend it with eight lines. /ip dhcp-client add add-default-route=no comment=defconf dhcp-options=hostname,clientid \ disabled=no interface=WAN1 add add-default-route=no dhcp-options=hostname,clientid disabled=n...

guys i have executed the rules in the above , and i have got trouble in internet connection it's break down even though I cleared all the ip in address list , I need your help please.