Mikrotek Router-board 1100AHx4 Dude Edition
Can the firewall be turned off completely with this router board?
AFAIK, if you delete the pre-config. firewall filter rules, I would call it disabled.
You can delete all Firewall Filter, Mangle, NAT, RAW firewall rules and disable connection tracking (although if there are no Firewall rules, then it should be turned off automatically).
https://wiki.mikrotik.com/wiki/Manual:IP/Firewall/Connection_tracking