Upgrade after a long time

[admin@MikroTik] > /interface export

jan/20/2019 18:07:12 by RouterOS 6.40.5

software id = CCV8-MISI

model = CCR1009-7G-1C

serial number = 7AF40788DE3D

/interface bridge
add name=bridge1
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/interface bridge port
add bridge=bridge1 interface=ether1
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=ether3
add bridge=bridge1 interface=ether4
add bridge=bridge1 interface=ether5
add bridge=bridge1 interface=ether6
add bridge=bridge1 interface=ether7
/interface bridge settings
set use-ip-firewall=yes
[admin@MikroTik] >

I don’t want to relive this adventure:
http://forum.mikrotik.com/t/my-router-probably-broken/114864/12