Before you do anything, ensure you ask questions first and most importanly in WINBOX use the SAFE MODE (button near the top left, if something frigs the router it will kick out but be accessible, without safe mode in place, the router will kick out and you will have to push button set to deafaults and start from scratch!!
jan/22/2019 07:23:08 by RouterOS 6.43.8
/interface list
add name=LAN
add name=WAN
/ip pool
add name=dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=dhcp disabled=no interface=bridge name=defconf
/interface bridge port
add bridge=bridge comment=defconf interface=ether2-master
add bridge=bridge comment=defconf interface=wlan1
add bridge=bridge comment=defconf interface=wlan2
add bridge=bridge interface=ether3
add bridge=bridge interface=ether4
add bridge=bridge interface=ether5
/interface list member
add interface=bridge list=LAN
add interface=ether1 list=WAN
/ip address
add address=********* comment=defconf interface=bridge network=\
/ip dhcp-server network
add address=********** comment=defconf gateway=**********
/ip dns
set allow-remote-requests=yes
/ip dns static
add address=***** name=router**
What would you like to accomplish via DNS???
/ip firewall filter
add action=accept chain=input comment="defconf: accept ICMP" protocol=icmp
add action=accept chain=input comment="defconf: accept established,related"
connection-state=established,related
add action=drop chain=input comment="defconf: drop invalid" connection-state=
invalid
add action=accept chain=input comment="allow admin access" in-interface=LAN
source-address-list=allowadminaccess
add action=drop chain=input comment="drop all else
add action=fasttrack-connection chain=forward comment="defconf: fasttrack"
connection-state=established,related
add action=accept chain=forward comment="defconf: accept established,related"
connection-state=established,related
add action=drop chain=forward comment="defconf: drop invalid"
connection-state=invalid
add action=accept chain=forward comment='Allow LAN to WAN traffic'
in-interface=bridge out-interface=wan
+++++++
add action=drop chain=forward comment="Drop all else"
+++++(if you require any port fowardings, then you would need the following rule also.
add action=accept chain=forward comment= " Allow Port Forwarding"
connection-nat-state=dstnat
/ip firewall nat
add action=masquerade chain=srcnat comment="defconf: masquerade"
out-interface=ether1
add action=dst-nat chain=dstnat dst-port=80 in-interface=ether1 protocol=tcp
to-addresses=********* to-ports=80
add action=dst-nat chain=dstnat dst-port=3999 in-interface=ether1 protocol=
tcp to-addresses=******** to-ports=3999
If these two destination nat rules are here in an attempt to get switch working REMOVE or DISABLE THEM!
/ip upnp
set enabled=yes (Change this to NO)
/ip upnp interfaces
add interface=bridge type=internal
add interface=ether1 type=external
YOu will need to create an IP FIREWALL ADDRESS LIST For ADMINACCESS