If WifiOnICE does not work on your Linux/Development Laptop, then it might be due to overlapping ip ranges. On my devices, the default docker network is 172.18.0.0/16
which is the same as the WifiOnICE network.
You might experience that you can ping 172.18.0.1
but your browser does not auto detect the portal.
Now that we know why it does not work, the fix is straigt forward.
sudo systemctl stop docker
Edit or create /etc/docker/daemon.json
Choose whatever range you like/is compatible with your setup.