Запустил
# sudo ufw status verbose
Status: active
Logging: on (low)
Default: deny (incoming), allow (outgoing), disabled (routed)
New profiles: skip
To Action From
-- ------ ----
80,443/tcp (Apache Full) ALLOW IN Anywhere
22/tcp LIMIT IN Anywhere
80/tcp ALLOW IN Anywhere
443/tcp ALLOW IN Anywhere
3306/tcp ALLOW IN NN.NNN.NNN.NNN
80,443/tcp (Apache Full (v6)) ALLOW IN Anywhere (v6)
22/tcp (v6) LIMIT IN Anywhere (v6)
80/tcp (v6) ALLOW IN Anywhere (v6)
443/tcp (v6) ALLOW IN Anywhere (v6)
Насчет роутера - по бестолковости не знаю.
Сетевой кабель прямо в корпус лептопа.