I still resist to systemd because initd just works great, i consider it mature enough and more secure, and i got a surprise when i wanted to keep initd with network-manager because it seems that network-manager now only works with systemd…. sad sad news.
But well, who knows, destiny calls.
Investigating a little i found another alternative network manager which looks pretty nice (for me), it is called wicd.
To add wicd to the fluxbox try:
wicd-client -t &