Вот примерный конфиг по вашей схеме
#D-link
create vlan mgnt tag 13
config vlan mgnt add tagged 1,16
create iproute default 192.168.13.1
config ipif System ipaddress 192.168.13.254/24 vlan mgnt
#Mikrotik RB750
/interface vlan
add interface=ether1 name=mgnt vlan-id=13
/ip address
add address=192.168.13.1/24 interface=mgnt network=192.168.13.0
#Mikrotik hAP
/interface bridge
add igmp-snooping=yes name=bridge1 protocol-mode=none
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=wlan1
/interface vlan
add interface=ether1 name=mgnt vlan-id=13
/ip address
add address=192.168.13.253/24 interface=bridge-mgnt network=192.168.13.0
#Mikrotik RB941
/interface bridge
add igmp-snooping=yes name=bridge1 protocol-mode=none
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=wlan1
/interface vlan
add interface=ether1 name=mgnt vlan-id=13
/ip address
add address=192.168.13.252/24 interface=bridge-mgnt network=192.168.13.0